Quarterly Publication of Irrigation Australia (WA Region)
No. 59 SUMMER 2020
In this issue Sustaining gardens with alternative water sources
Irrigation system assessment
Blood and bone fertiliser - making a comeback
Hamersley public golf course
WA irrigation training- a better future starts here
New water treatment plant to meet future needs of Bunbury Extensive review of WA's plumbing laws and its impact on the irrigation industry
Collaboration key to developing MAR for open space irrigation
The Overflow - Summer 2020
1
Contents Sustaining gardens with alternative water sources
6
Collaboration key to developing MAR for open space irrigation
10
Blood and bone fertiliser - making a comeback
14
A better future starts here
16
New water treatment plant to meet future needs of Bunbury
18
Extensive review of WA's plumbing laws and its impact on the irrigation industry
20
Cost effective pumping during drought
22
Irrigation system assessments
24
Hamersley public golf course
26
Be part of the weather smart irrigation rebate
28
Keep up-to-date with irrigation in Australia, visit the IAL website at www.irrigation.org.au
The Overflow is the quarterly publication of Irrigation Australia (WA Region). Articles published are views expressed by the authors. IAL(WA) is not responsible for their accuracy and disclaims any liability which may arise from any person acting on the materials contained within. Editorial content does not necessarily represent the views or policy of Irrigation Australia (WA Region) Publisher/Editor: IAL WA REGION, PO Box 61, Victoria Park, WA 6979 Tel (08) 9368 3136
National Contacts Bryan Ward - Chief Executive Officer Geoff Harvey - National Training & Marketing Manager Marike Froneman - Accountant (part time) Andres Jaramillo - Training and Certification Officer Chris Delphin - Business Administration Manager Kahla McKinless - Training & Certification Assistant Tracy Martin-National Membership & Regions Manager
bryan.ward@irrigation.org.au geoff.harvey@irrigation.org.au marike.froneman@irrigation.org.au andres.jaramillo@irrigation.org.au chris.delphin@irrigation.org.au kahla.mckinless@irrigation.org.au tracy.martin@irrigation.org.au
Mark Your Diary March 3 Certificate III in Irrigation technology block 1 - Bibra Lake 31 Irrigation pumps & systems - Bibra Lake May 5 Certificate lll in Irrigation technology block 2 - Wangara 12 Urban irrigation design course - South Perth 14 Basics in wiring & electrics for irrigation systems - Canning Vale 19 Certificate lV in Irrigation Management Block 1 - Jandakot June 2 Commercial Irrigation design course - South Perth 16 Concepts of drip irrigation - Bibra Lake For further information please visit: www.irrigationaustralia.com.au/events/category/wa-regionevents or contact the WA office on (08) 9368 3136 or ellen.slobe@irrigation.org.au
WA Contact Rebecca New – IALWA Administration Support (08) 9368 3136 email: adminsupport@irrigation.org.au For more details on upcoming courses and events, please contact: Ellen Slobe IAL WA Projects Officer on (08) 9368 3136 Mobile: 0458 291 643 email: ellen.slobe@irrigation.org.au
Cover: IAL on-site members' visit to Hartfield Park see article page 10
Authorised sprinkler testing signs If you are testing a system outside of water rostering hours, as a gardening industry professional, you are not required to register for an exemption with the Water Corporation. However, to promote that you are doing authorised work, you might like to have a sign clearly displayed at the front of the property. These signs are available from the IAL (WA). Now available in: Corflute ($25) and Magnetic ($75). GST Exclusive. All signs approximately 400mm x 300mm. For enquires and order form please contact our WA office on (08) 9368 3136.
2
The Overflow - Summer 2020
Chairman's Report by Clinton Hort - IAL (WA) Industry Chairman
Dear Members,
Welcome to the Summer edition of The Overflow. Irrigation Australia Regional Committees are groups of dedicated members who have formed a Committee to organise activities in a geographical area. These Committees play a significant role in the relationship between the Association and the irrigation industry in that region. The WA Committee has been active for over 25 years and is a pivotal link between IAL and the WA stakeholders by delivering on a suite of incentives to assist in spreading water efficiency messages, training, promotion of best practice and activities designed to support industry and educate the community. I urge all members to utilise the services offered to you through your
membership and ensure you gain the maximum return on investment and encourage you to engage with the local group should you have any recommendations that you believe should be considered to support the local industry. Irrigation Australia is here to assist our members in any way possible to achieve successful outcomes. At a domestic level, the Waterwise Program members are working to provide an opportunity for households to increase their water-use efficiencies in the garden, assisted by initiatives such as the Weather Smart Irrigation Rebate (see page 28 for more info). There are still plenty of rebates available, so there is still time for irrigation contractors to enquire about becoming an endorsed Waterwise
Garden Irrigator to be able to offer their services for the rebate. We are now at the peak of the irrigation season, and the WA team of Irrigation Australia are busy planning another year of activities with several free events almost ready for promotion. These are sure to generate a good amount of interest, so keep an eye on your emails and book early! As always, we welcome any feedback and input from industry, so please don’t hesitate to contact the WA office on 9368 3136. On behalf of the WA Regional Committee, I wish you a successful 2020!
From the CEO Bryan Ward
Dear Members, It can hardly be described as a Happy New Year while our media in recent weeks has been dominated by bushfires, drought, cyclones & floods. As I write this piece for the Overflow dramatic pictures are emerging of hailstorms in Canberra and Sydney damaging vast amounts of property so we certainly live up to our reputation of ‘a sunburnt country of droughts and flooding rains’ as quoted in the poem My Country by Dorothy Mackellar. Little did she realise in 1904 how prophetic her words would be 116 years later. The efforts of many thousands of firefighters from Australia and overseas supported by many community groups have done an outstanding job of saving many lives and homes and we are all very proud of their efforts at great risk to their personal safety. Thankfully the Irrigation Australia team
are all safe and well and to the best of our knowledge so are our many members across Australia. Irrigation Australia looks forward to as many local and international irrigation stakeholders as possible attending the combined 24th International Congress and Irrigation Australia conference & exhibition in September this year in Sydney. This will be the 24th International ICID Congress since 1951 and is an event that has never been held in our country before. It is an exciting opportunity to welcome what will be a large contingent of international delegates to this event and showcase Australian irrigation techniques and know-how to the world as well as learn from others. The program for the event is developing well and Irrigation Australia has announced that abstract submissions are now open in a range of topics until 7 March 2020.
Information on the topics and the process to lodge submissions can be found on the event website at www.icid2020.com.au – click on the Australian conference and go to the call for papers menu. We have some great social and technical events on the program and these can be viewed on the event website at www.icid2020.com.au We encourage you to take advantage of the early bird discounts available and please contact us if you have any questions on the event. Hopefully we will see you in Sydney.
Bryan Ward
The Overflow - Summer 2020
3
Regional Update Tracy Martin - National Membership & Regions Manager and Ellen Slobe - WA Projects Officer
Regional Events The final regional activities for 2019 saw IALWA, in conjunction with Harvey Water, deliver a Soil Moisture Monitoring Field Day on 26th November commencing 10.00am at the Harvey Citrus property which was attended by over 75 people. The field day provided a good introduction to data-based management tools for use in contemporary farming practice. The information is relevant to spray, surface and drip and irrigators in dairy, beef, horticulture or fodder production. DPIRD’s Rohan Prince presented on the use of moisture sensors, including how data is gathered, interpreted, and can be used as a farm management tool. Farmers were able to see how soil moisture sensors might improve their own irrigation systems and efficiency, increase productivity, and reduce input costs. Five suppliers of moisture monitoring equipment had displays of sensorrelated equipment and were available to provide additional information on commercially available options: • Aquamonix • Wildeye • Swan Systems • HR Products • MAIT Industries / Farmlink Rural
4
On 4th December; City of Kalamunda hosted the final member breakfast for 2019 to look at the Managed Aquifer Recharge (MAR) site upgrades since the original event held in 2015 on commissioning. Registrations to this event were taken up quickly and resulted in an oversubscribed situation which we were able to accommodate. Daniel Nelson - Project Manager Water Projects, City of Kalamunda provided an overview of the recent upgrades as Stage II of the MAR project infrastructure. The 2018/19 financial year brought about some significant upgrades which included a new automated controller for the injection valve, an upgrade to the activated carbon filter and a new injection bore. The new automated injection valve controller has significantly increased the overall performance and efficiency of the scheme, with far less disruption during injection. Jamie Pickford, WA, NT & Indonesia Manager - Amiad Australia Pty Ltd discussed the upgrades made to the activated carbon filter and the injection bore which has increased the harvesting capacity by an assumed Below: Harvey Soil Moisture Day Members' event Right: Managed Aquifer Recharge site visit
The Overflow - Summer 2020
100%. Dave Roberts of Project Engineering was also on hand to discuss the injection valve and injection valve control system. The events calendar for 2020 is shaping up to deliver 4 member events at locations of interest, however we are still in negotiations to confirm these proposed sites and lock down dates. Event invitations/flyers will be sent out to members as soon as possible for registrations to be made. Be sure to register early as these events are extremely popular and limited numbers apply. IALWA are in discussions with Dept of Primary Industry & Regional Development and allied industries, about the possibility of a jointly organised Field Day to provide growers in the North Wanneroo area with information on the practices and strategies to adjust and manage their businesses on reduced water volumes, following the announcement of the proposed 10% reduction in water allocations in North Wanneroo and the on-farm irrigation assessments undertaken by Irrigation Australia (read more about this project on pg 24). We look forward to meeting new and existing members at these events.
Waterwise Following the previous announcement of the water utilities’ formal support for Waterwise in the South-West an industry launch event was held in Busselton on 12th November, with the support of Busselton Water. There are several Busselton businesses and individuals now undertaking the Waterwise study and we look forward to being able to promote these endorsed members to the Busselton community in the coming months. Arrangements for a Bunbury industry launch event are underway and will be announced soon.
The Water Corporation’s Weather Smart Irrigation Rebate is still underway, with a continued steady rate of claims submitted. There is still plenty of time and a substantial number of rebates remaining. The Water Corporation will be undertaking a social media and direct marketing campaign in the early part 2020 to promote the rebate to the community. Any irrigation contractors who would like to be able to provide the compulsory programming service component of the rebate is urged to contact the WA office to enquire.
The Waterwise Programs’ sponsorship of an “All About Water” segment on 6PR’s Sunday morning Gardening Show came to a close in midDecember. Loyal listeners across WA will have learned many new watersaving tips from Sue McDougall, and we hope they’ll also heed the sponsorship’s message to reach out to endorsed Waterwise specialists for any irrigation advice.
New staff The WA office welcomes a new staff member in 2020, with the commencement of Rebecca New in Administration Support. Bec joins the team in a part-time capacity to assist with
the administration of the Waterwise Programs, particularly relating to Waterwise study and assessments, re-endorsements, etc. Bec will be in the office from Wednesday to Fridays, while Ellen will now be available from Monday to Wednesdays. Under the management of Tracy, the WA team will continue to deliver the same services, striving towards the development of the WA irrigation industry through the administration & promotion of Waterwise, co-ordinating training and member events with the support of our stakeholders. Wishing you a successful start to 2020!
Left: Rebecca New
Below: Busselton waterwise launch event
The Overflow - Summer 2020
5
Sustaining Gardens with Alternative Water Sources New WA guidelines help navigate the way
Article by Melissa McGrath, Urban and Social Sustainability Consultant, Josh Byrne & Associates
Photo: Community bores support urban greening (image courtesy JBA)
Utilising alternative water supplies for landscape irrigation can supplement Perth’s Integrated Water Supply Scheme (IWSS) and help secure Perth’s water future. Adopting this fit-forpurpose approach can help accommodate Perth’s growing population and our preference for greener, cooler neighbourhoods, despite our drying climate. Yet identifying the most appropriate source and approach can still prove a challenge, with many unsure how to weigh up the pros and cons, then navigate and address the numerous site-specific planning, operational and governance requirements. Recognising the need for greater direction in the uptake and implementation of fit-for-purpose alternative water supply systems, Josh Byrne & Associates (JBA), with support from the Water Corporation and various other stakeholders, has developed guides that focus on two areas of fit-for-purpose domestic water supply – community garden bores and recycled greywater. The Community Bore Guide provides information on implementing well managed community bore schemes, in areas suitable for a bore, for new residential developments in Western Australia. The West Australian Greywater Guide, developed in conjunction with the Greywater and Wastewater Industry Group (GWIG), provides a source of practical information on how to best reuse domestic greywater. Responding to Climate Change The south-west of Australia is experiencing a drying trend due to climate change, with reduced rainfall since the mid-1970s
6
The Overflow - Summer 2020
significantly impacting on the runoff into Perth’s dams. Water solutions for Perth have included an increased use of groundwater and reliance on sea water desalination. Locally relevant and fit-for-purpose integrated urban water systems can support Perth’s existing water supply scheme and provide long term water supply solutions at a variety of scales including rainwater harvesting, stormwater reuse, as well as greywater and wastewater reuse. Uptake of these alternative sources can help to alleviate pressure on the IWSS, ensure groundwater dependent wetlands and ecosystems are protected, and connect people to the local water cycle. Delivering the Waterwise Perth Action Plan At the same time as responding to a drying climate, Perth is also facing the challenge of meeting the needs of a growing population wanting to reside in a green, liveable city. To address these challenges, the McGowan Government and Water Minister Dave Kelly has led the development of the Waterwise Perth Action Plan aiming to transform Perth into a leading waterwise city by 2030. The Action Plan, released in October 2019, has been developed with knowledge and insights provided by over 200 stakeholders and seeks to take the next steps from saving water to improving how we manage water in our urban environments. Actions are divided across different scales for delivery and a collaborative approach has been highlighted as essential to achieving the Action Plan, with everyone in the community expected to have a role, including State Government, councils, industry, individual businesses and households.
As a key stakeholder in the delivery of the Waterwise Perth Action Plan, the Water Corporation will continue their commitment to exploring alternative water solutions for Perth. Most of Perth’s scheme water (70%) is used in our homes and more than 40% of this is used to water gardens. One of the ways to reduce this reliance on scheme water is the option to use alternative localised non-potable water sources for irrigation, such as greywater, and groundwater if done responsibly in suitable areas, combined with water efficiency measures to ensure that these sources are also used carefully. The development of both the Community Bore Guide and The West Australian Greywater Guide support the journey towards a Waterwise Perth by providing direction to a variety of stakeholders and end-users for the uptake of alternative water supply systems as part of an integrated and balanced approach to water management. This is important for ensuring ongoing water security to support a growing population as well as protecting and enhancing healthy waterways and wetlands, and cool, liveable urban spaces. The Community Bore Guide While groundwater supplies are under pressure from climate change and use, the efficient irrigation of domestic gardens with bore water can be a better alternative than using scheme water. Some developers have been exploring community garden bores as a cost effective and efficient way to supply bore water for this purpose. A community bore supplies groundwater via a reticulated network to properties in cluster to precinct-scale urban development for non-drinking uses, including private garden watering and for irrigation of communal green spaces.
Components of the Community Bore Guide The Community Bore Guide consists of two parts: • Community Bore Checklist. A summary document with a four-stage process to assist in site specific implementation including: planning, design, installation and operation. • Community Bore Report. A detailed document further explaining the four stages, including a process flowchart, example handover procedure and insights from stakeholder experiences. Recommendations are included to ensure the community bore scheme remains a viable option, such as ongoing assessment of groundwater use, planning for the switch to a climate independent water source, minimising risk with effective governance, engaging the community and practicing water efficient behaviour.
The Overflow - Summer 2020
7
Implementing a community bore can be a complex process that requires the involvement of numerous stakeholders and consideration of various planning, technical and operational requirements. To address this issue the Community Bore Guide has been developed as an information resource for developers, local governments or service providers interested in implementing a community bore scheme in suitable areas. Benefits of implementing a community bore as part of integrated urban water management include: − The potential to provide a well-managed, fit-for-purpose alternative water supply at a scale that is cost-effective to operate. − Maintain or increase urban greening and improve local amenity. − Maximised water efficiency if implemented with individual metering, efficient irrigation systems and water efficient landscape design. Using the experience gained and lessons learnt from various community bore schemes in Perth, the Community Bore Guide compiles information into the one source to ensure community bores are designed, implemented and managed to suit site specific conditions, community needs, and prevent overuse of Perth’s precious groundwater. Specific guidance draws from JBA’s role in implementing the successful community bore scheme at the WGV development by DevelopmentWA in White Gum Valley. Additional stakeholders provided support, review of material and experiential knowledge to assist in the development and completion of the Community Bore Guide. The West Australian Greywater Guide Greywater is domestic wastewater from bathrooms and laundries that can be diverted to the garden via simple low-cost technology to provide an alternative water source, alleviating pressure on scheme water supply. A reliable supply of greywater for irrigation can help to create green and cool neighbourhoods and contribute to meeting Perth’s wastewater recycling targets whilst reducing wastewater volumes requiring treatment. Benefits of greywater reuse include: • Reduced scheme water demand and wastewater discharge. • Lower household bills. • Restriction free water supply for gardens, especially in drier months. The West Australian Greywater Guide has been developed as the go-to source of useful and practical information on how to best use greywater in Western Australia, with a focus on the Swan Coastal Plain of Perth. The Greywater Guide targets developers, planners, designers, builders and plumbers, homeowners, state and local government agencies; with specific benefits for each group outlined. A series of four Fact Sheets are included for easy dissemination of information as well as an example of how to include greywater requirements in design guidelines for architects, builders and consultants. Download the Guides The Community Bore Guide and The West Australian Greywater Guide are available for download from the JBA website. There are other complementary resources prepared by JBA too, including the Residential Greywater-Ready Plumbing Guidelines and the Water Efficient Landscape and Irrigation Guide. Go to www.joshbyrne.com.au/resources
8
The Overflow - Summer 2020
Acknowledgements Community Bore Guide Department of Water and Environmental Regulation DevelopmentWA (formerly LandCorp) Department of Health Department of Planning, Lands and Heritage Water Corporation City of Fremantle TABEC Total Eden Urban Development Institute of Australia Urbaqua WA Local Government Association Western Irrigation
The West Australian Greywater Guide Department of Communities Department of Water and Environmental Regulation Development WA (formerly LandCorp) Department of Health Water Corporation Greywater and Wastewater Industry Group
Components of the West Australian Greywater Guide The West Australian Greywater Guide includes information on: • Regulatory guidance for effective greywater system installation and use, including the ‘Code of Practice for the Reuse of Greywater in Western Australia’ (Department of Health, 2010), Australian Standards and Plumbing Codes. • Methods of greywater use, with a focus on greywater diversion devices. • Approvals and greywater system components: drainage collection pipework, greywater unit, and irrigation area. • Application area and calculation, local context, landscape and irrigation considerations. • Design and technical considerations, including feasibility considerations and case studies of new and existing homes. • Indicative costs to supply and install a greywater reuse system. • Installation advice, including using an experienced greywater professional (contact via GWIG website) to design and install the system. • Maintenance advice for the pump, filters, irrigation system, soil and plant health inspection, diversion to sewer and scheme water top up. • Water quality, product selection, chemicals in the water and plant health advice. • Suitability for regional areas and checklist.
Nominations Are Open for the
Hunter Industries Emerging Leader in Irrigation Award
The EMERGING LEADER IN IRRIGATION AWARD from Hunter Industries recognises industry leaders who are positively contributing to water conservation efforts and advancing growth and professionalism within the industry. ELIGIBILITY The award is open to individuals in Western Australia who actively operate, maintain, and manage irrigation systems on a daily basis. Eligible irrigation system types include landscapes, parks, gardens, turf, sports fields, and nurseries. PRIZE The winner will receive a commemorative award and an all-expenses-paid trip to Hunter Industries in San Marcos, California, USA. NOMINATION PROCESS Candidates can self-nominate or be nominated by a third party such as a manager or supervisor. Nominations must be received by the end of business hours on 27 March 2020. The winner will be announced in August 2020. To submit a nomination or view award selection criteria, visit hunterindustries.com/elia.
National Free Call: 1 800 HUNTER Toll Free Fax: 1 800 651 680 www.hrproducts.com.au hrsales@hrproducts.com.au
Tel: 1 300 856 368 Fax: 1 300 856 369 www.nelsonirrigation.com.au info@nelsonirrigation.com.au
Built on InnovationÂŽ Learn more. Visit hunterindustries.com
Suite 7, 202 Ferntree Gully Road, Notting Hill, Melbourne, Victoria, 3168, Australia Tel: 61 3 9562 9918 Fax: 61 3 9558 6983
RESIDENTIAL & COMMERCIAL IRRIGATION |
The Overflow - Summer 2020
9
Collaboration key to developing MAR for open space irrigation Right: Hartfield Park MAR infrastructure top view and Dan Nelson (middle)
As climate change and population growth continue to put pressure on Perth’s groundwater, interest is developing for small scale alternative irrigation schemes using recycled storm and wastewater.
The City of Kalamunda has put great effort into the project – from the trial to its full implementation – to meet operating and regulatory requirements for recharging and abstracting stormwater for public open space irrigation.
In October 2019, the Western Australian Government released the Waterwise Perth Action Plan to transform Perth into a leading waterwise city by 2030. As part of this plan, recycled and alternative water supplies could make up to 45 per cent of the projected gap between future supply and demand by 2030.
Given our extensive groundwater systems, managed aquifer recharge is an attractive option to store winter runoff.
When it comes to developing alternative water supplies, there is no single solution and there is a lot that can be learned along the way. This message was recently re-enforced by Dan Nelson from the City of Kalamunda who shared his experience developing the city’s Managed Aquifer Recharge project at the Hartfield Park sporting precinct. Dan with the support of his council has led the building of Perth’s first scaled local Managed Aquifer Recharge irrigation project to service the extensive sporting fields and recreation grounds at Hartfield Park. Licensed by the Department of Water and Environmental Regulation (DWER), the project harvests and stores stormwater in winter for recovery and use as irrigation water in summer. Lessons learned from the Hartfield Park trial and subsequent upscale of this project were shared locally and internationally in December. The 19th International Small Water and Wastewater Systems Conference included a field tour of Hartfield Park giving policy directors, engineers and academics an opportunity to learn about the project. That same month, an Irrigation Australia event gave Perth local government staff and irrigation professionals an insight into the project.
10
The Overflow - Summer 2020
It also enables runoff to be captured, including in areas that waterlog, to balance our seasonal demands in dry summers. Where feasible, managed aquifer recharge has the potential to make stormwater and treated wastewater an asset for communities - supplying water for industry, public open spaces and sporting fields. It can also reduce the cost of managing the impact of stormwater on sensitive waterways, such as estuaries, and support groundwater levels. Other local governments in growing metropolitan areas are looking at opportunities to develop alternative water supplies to supplement groundwater use. The City of Swan is exploring a different approach to recycling by harvesting sub-surface drainage water for public open space irrigation. The City of Mandurah is also looking to add to their existing wastewater reuse scheme utilising the Caddadup wastewater treatment plant. Planning is underway for a new non-potable scheme using treated wastewater, stored through managed aquifer recharge, to irrigate public open space within the northern sector of Mandurah. The Shire of Serpentine-Jarrahdale is also planning for a range of alternative water sources to satisfy its future water needs. As one of the fastest growing communities in Australia, it is adopting an integrated water management strategy to respond to current and future water supply and infrastructure pressures, with this work winning an AWA WA water award along with industry partners Wallbridge Gilbert Aztec.
The best solution in each place depends on the scale and nature of the demand, the source and storage options, and how any risks to the environment and human health are managed. Hydrogeologists, engineers, economists, environmental scientists, microbiologists, urban planners and public servants all have a role in identifying solutions. A key component of the Waterwise Perth Action Plan is to identify any barriers and work on any issues regarding policy, regulations and legislation to support waterwise outcomes. This means consolidating, streamlining and improving the suite of water policies, guidance and technical advice to drive waterwise outcomes as well as improving water-related State planning policy, guidelines and associated processes to strengthen waterwise outcomes at all levels of land use planning. In preparation for increased use of this practice, DWER is currently reviewing the regulatory framework for using aquifers to store treated wastewater and stormwater. Department of Water and Environmental Regulation Executive Director Science and Planning Nygarie Goyal said a scientific approach to understanding what actually happens when we pump source water into the deep aquifer will ensure environmentally responsible outcomes. “As part of the Peel Integrated Water Initiative, DWER, in collaboration with CSIRO and the Peel Development Commission, has conducted a study to determine if recharging aquifers with stormwater could help secure long-term water supplies for intensive agriculture in the area,” Nygarie said.
“To this end, we have been working with local government, developers and planning consultants to take ideas and concepts through to viable, costed and well-understood alternative water supply solutions,” Nygarie said. “For example, we have been collaborating on the investigation and mapping of planning and approval pathways for non-potable water supplies. “This includes supplies for heavy industry in the Kwinana / Western Trade Coast areas, for irrigated agriculture on the Gnangara groundwater system, and in the Peel and South West regions, as well as irrigation of greenspaces in Perth’s North East corridor, Western Suburbs and in Greater Bunbury.” DWER is also working with the Water Corporation to identify future demand for treated wastewater and how infrastructure can be designed to deliver it. To support water supply planning for the future, the two agencies are investigating locations in Perth where recycled wastewater, stormwater, surface and sub-soil drainage and sustainable water supply options are found to be suitable. “As a department we are looking at the lessons of others, and also our own,” Nygarie said. Until recently, water recycling and stormwater harvesting for public open space irrigation in Western Australia were led by regional areas. Although substantially smaller populations, the lessons of our regional towns are useful. These regional areas have led the way in innovation because they have had to.
“This study involved drilling a bore into the target aquifer and investigating potential interactions between the source water and the water already stored in that part of the aquifer. Results of the work will be published in 2020.”
Water Corporation is involved with supplying treated wastewater to approximately 50 water recycling schemes in WA that irrigate parks, gardens, gold courses, sports grounds and other open spaces.
DWER has also been helping proponents determine the feasibility of alternative water supplies for public open space in areas without available groundwater.
Where required DWER has worked to reduce red tape and unnecessary cost burdens for acting as non-potable water service providers.
The Overflow - Summer 2020
11
It has also strategically supported development of nonscheme supplies to assist regional towns in some of the State’s driest areas build water security. This includes complementary non-potable water supplies for townscape irrigation, sports fields, and emergency firefighting needs. These supplies leverage off existing local infrastructure, as well as the built and natural landscape, to harvest and re-use stormwater. This builds resilience and reduces the use of valuable and limited scheme water supplies. The challenge as we move forward is to continue to innovate, collaborate, share and build upon our experiences. So whether in the regions or the city, our lessons learned become part of the tools in our water innovation toolbox for WA to keep our groundwater and public open space healthy and sustainable under climate change. More information on Managed Aquifer Recharge is available from the Department of Water and Environmental Regulation at http://www.water.wa.gov.au/urban-water/water-recyclingefficiencies/managed-aquifer-recharge
Photos - Top Right: Hartfield Park MAR valve controller Bottom Right: IAL on-site members' visit to Hartfield Park
SMART IRRIGATION Landscape & Agricultural
Galcon GSI Controller
Gator Radio Control
Gator Hydraulic Valve
WIRELESS IRRIGATION CONTROL CONVERTING EXISTING MANUAL SYSTEMS TO AUTOMATIC
With the use of the Galcon GSI and Gator Radio System you would no longer need to run cable to the field valves. The Gator System transmits a radio signal up to 3km away to the Field Receivers to activate DC latching coils and therefore the valves... What could be simpler?
WATER SAVING Orbit B-hyve™ Controller
Hunter Hydrawise™ Controller
www.hrproducts.com.au
12
The Overflow - Summer 2020
SUPERIOR IRRIGATION FLOW Ask your local AAP distributor how to make your requirements flow with appFLO valves. Our warehouses service a variety of industries such as Engineering, Plumbing, Irrigation, Fire Protection and Mining, stocking a full range of fittings and valves - including Ball, Gate, Globe, Butterfly, Check Valves and Strainers.
BUTTERFLY VALVES WAFER, LUGGED, GEAR-OP
RESILIENT SEAT GATE VALVES
CC, ACC, T/E , T/C, SOCKET END
CAMLOCK - TYPE C
WAFER CHECK VALVES
‘Y’ STRAINER
DUAL & SINGLE DISC
www.aapindustries.com.au
CAMLOCK - TYPE E
FLANGED & THREADED
AAP SYDNEY - info.nsw@aapindustries.com.au AAP BRISBANE - info.sqld@aapindustries.com.au AAP MELBOURNE - info.vic@aapindustries.com.au AAP ADELAIDE - info.sa@aapindustries.com.au AAP PERTH - info.wa@aapindustries.com.au AAP TOWNSVILLE - info.nqld@aapindustries.com.au
The Overflow - Summer 2020
13
Blood and Bone Fertiliser Making a comeback Article by Richgro
It doesn’t seem that long ago, when all we could really use for fertilising all our plants in the garden and allotment, was the product Blood and Bone. Forty to sixty years ago, our parents and grandparents used to feed all their fruit and vegetables with this product and look how good the gardens were then! It is still to this day used widely in all forms of horticulture and starting to make a real come back as we turn into the next decade of 2020. Such an amazing, versatile product as the plants cry out for something other than synthetic, inorganic fertilisers and gardeners look to more environmentally safe options. The product breaks down in the soil very quickly with no danger of leaching into the groundwater, rivers and seas. The all-natural blood and bone meal are by-products of cattle processing, most often collected from the end process of the slaughterhouse. It's made of animal blood that has been dried and boiled and then ground into a powder form. Blood and Bone is a good natural source of all three of the major nutrients; nitrogen, phosphorous and potassium. Used as a general-purpose food, for a wide range of plant types. Having some phosphorus makes it particularly good for stimulating strong, healthy root growth.
14
The Overflow - Summer 2020
It is an organic based plant food that helps to build up the soil structure, especially suited to the WA sandy soils. It can also be mixed with other fertilisers to become even more beneficial to the existing soil and has a long-lasting effect and is safe to use in any situation. The Benefits of Blood and Bone defined as 65% pure high-quality organic meat meal are substantial to plant and soil health • Improves soil structure and drainage • Promotes soil micro-organisms and encourages earthworms • Includes cow manure, which is a gentle source of nutrients • Greatly boosts growth of all vegies and flowers including exotics and natives • Promote early growth on young plants and strong root development Blood and Bone is widely used in horticulture and home gardens. Uses range from giving potted plants a boost; applying to roses for stronger and healthier plants and blooms; feeding established plants in orchards and vineyards; and top dressing for turf for added organics in hungry, sandy soils. For more details visit www.richgro.com.au/commercial
Less Water The Ezi Way
• • • •
The Overflow - Summer 2020
15
A better future starts here. Irrigation Australia’s range of nationally accredited courses and qualifications are designed to provide you with the right skills and knowledge to pursue a career in a growing industry
Plan your training for the year ahead! March 3/3/20 - 6/3/20
Certificate III in Irrigation Technology - Block 1
Bibra Lake
Irrigation Pumps & Systems
Bibra Lake
5/5/20 - 8/5/20
Certificate III in Irrigation Technology - Block 2
Wangara
12/5/20 - 13/5/20
Urban Irrigation Design Course
South Perth
14/5/20
Basics in Wiring & Electrics for Irrigation Systems
Canning Vale
March - April 31/3/20 - 1/4/20
Blended Learning
May
19/5/20 - 22/5/20 Certificate IV in Irrigation Management - Block 1*
Jandakot
*Possibility for this course to be delivered in the South West if demand requires. Email tracy.martin@irrigation.org.au to register your interest.
June
Practical Approach
2/6/20 - 3/6/20
Commercial Irrigation Design Course
South Perth
16/6/20
Concepts of Drip Irrigation
Bibra Lake
July 22/7/20 - 23/7/20 Irrigation Efficiency
Jandakot
August 4/8/20
Introduction to Irrigation - Urban
South Perth
11/8/20 - 14/8/20
Certificate III in Irrigation Technology - Block 3
Wangara
18/8/20 - 19/8/20
Introduction to Irrigation - Agriculture
TBC
Certificate IV in Irrigation Management - Block 2
Jandakot
September 1/9/20 - 4/9/20
Industry Expert Qualified Trainers 16
*Possibility for this course to be delivered in the South West if demand requires. Email tracy.martin@irrigation.org.au to register your interest.
October 10/11/20 - 13/11/20 Certificate III in Irrigation Technology - Block 4
The Overflow - Summer 2020
Wangara
PO BOX 61 Victoria Park WA 6979 | 08 9368 3136 | tracy.martin@irrigation.org.au | irrigationaustralia.com.au
Certificate III in Irrigation Technology AHC32419
Course Overview
Our Certificate III in Irrigation Technology is a nationally accredited qualification, tailored to deliver a multi-platform learning experience, focusing on everything Irrigation. This qualification is considered the starting point or gateway, into the irrigation industry. This course entails everything you need to learn to operate and maintain irrigation systems in a wide range of professional environments.
Program Structure NINE CORE & THIRTEEN ELECTIVE COMPETENCIES 1. AHCWHS301 2. AHCIRG337 3. AHCIRG338 4. AHCIRG339 5. AHCIRG340 6. AHCIRG342 7. AHCIRG345 8. AHCINF304 9. AHCWRK309 10. AHCIRG328 11. AHCIRG341 12. AHCIRG344 13. AHCIRG346 14. AHCIRG347 15. AHCIRG348 16. AHCMER304 17. AHCWRK305 18. MEM12024A 19. MSTGN3003 20. NWPIRR014 21. NWPIRR022 22. PMBWELD302
Contribute to work health and safety processes Measure irrigation delivery system performance Troubleshoot irrigation systems Monitor soils under irrigation Install irrigation pumps Interpret irrigation plans and drawings Install pressurised irrigation systems Install and terminate extra low voltage wiring systems Apply environmentally sustainable work practices Operate irrigation controller and sensor technology Operate and maintain irrigation pumping systems Implement an irrigation schedule Operate pressurised irrigation systems Maintain pressurised irrigation systems Operate and maintain moving irrigation system Recommend irrigation products and services Coordinate worksite activities Perform computations Estimate and cost job Install meters for rural water supplies Maintain meters for rural water supplies Electrofusion weld polyethylene pipelines
Learning Outcomes
CANDIDATES WILL LEAVE THIS COURSE WITH MANY BENEFITS, INCLUDING; • Extensive skills and knowledge in Irrigation design and installation. • Product knowledge, including the latest irrigation technology. • Reliable experience when it comes to service and consultation. • The ability to operate and maintain irrigation systems.
Career Pathway
Upon completion of this course, candidates can then progress into higher acclaimed qualifications, including Certificate IV in Irrigation Management – AHC41119. Candidates can then also apply to join any certification programs moving forward. Learn more about Irrigation Australia Certification programs by visiting our website.
Course Duration
The full qualification can be completed within 18 - 24 months from enrolment
PLEASE ENROL AT: www.irrigationaustralia.com.au/training
MEMBER
$6,950
+ GST per person
NON- MEMBER
$7,950
+ GST per person
The Overflow - Summer 2020 PO BOX 61 Victoria Park WA 6979 | 08 9368 3136 | tracy.martin@irrigation.org.au | irrigationaustralia.com.au
17
New water treatment plant to meet future needs of Bunbury Article by Aqwest Bunbury’s new highly efficient, modern water treatment plant has been designed to meet the future water needs of WA’s second city. Aqwest was given approval by the State Government in November 2017 to start design and construction of the $15 million plant, which is taking shape at Bunbury’s inland suburb of Glen Iris and scheduled for completion in April this year. When finished, the plant will be capable of producing up to 12 megalitres of drinking water a day, supplying Aqwest’s 35,000 customers and other potential customers into the future. The plant is a key element of Aqwest’s strategic development plan to relocate water production away from the sensitive seawater/freshwater interface between the Yarragadee Aquifer and the Indian Ocean. Aqwest uses bores near the coast to draw water from the aquifer, which is a large underground fresh water source. According to Aqwest Chief Executive Officer Gary Hallsworth, due to the impacts of climate change, the risk of increasing salinity levels near the coastal bores is threatening water quality. “The new water treatment plant will extract water from a high quality, sustainable in-land groundwater source, creating greater water production cost efficiencies and delivering benefits to our customers,” Mr Hallsworth said. “By planning for the future, Aqwest is continuing its commitment to provide sustainable, high quality driving water that consistently meets or exceeds our customers’ expectations.” When completed, the new treatment plant at Glen Iris will be open for public and school tours so people can see first hand where their water comes from and learn about the water treatment and distribution process.
Where does Aqwest operate? Aqwest is a West Australian Government Trading Enterprise responsible for providing drinking water to the City of Bunbury and surrounding areas, which includes about 17,000 properties.This includes Bunbury, parts of Dalyellup and the Picton industrial area, however its operating licence matches the boundary of the Greater Bunbury Regional Scheme, from north of Harvey and Myalup to south of Capel. It produces water from an integrated treatment and distribution system which includes 12 bores, six water treatment plants, four reservoirs, one water tower and about 380 kilometres of water mains. Aqwest operates independently from the Water Corporation and is the sole provider of water for the Bunbury region.
HARVEY
AQWEST’s OPERATING LICENCE AREA
MYALUP BINNINGUP
Map Key Current Water Supply Assets Operating Licence Area Roads / Highways Towns
AUSTRALIND
BUNBURY
EATON
DALYELLUP
BOYANUP PEPPERMINT GROVE BEACH CAPEL
DONNYBROOK
18
The Overflow - Summer 2020
Above: Aqwest Chair Stan Liaros, Chief Executive Officer Gary Hallsworth and former Chief Executive Officer Brad Bevis look over the plans for the new Glen Iris Water Treatment Plant.
Where does our water come from?
Aqwest water treatment process
Not from dams or desalination plants – Bunbury’s water is pumped by Aqwest from the Yarragadee Aquifer. This large, fresh water source is deep underground and stretches from Geraldton in the north to the south coast of WA. The aquifer stores about 1000 cubic kilometres of water.While it is recharged with rainfall which percolates through the ground, it is still a limited resource which must be conserved and protected. The water used now will affect the amount of water available in the future.
The Yarragadee Aquifer and contains some iron, manganese and other minerals absorbed from the soil. When the water is pumped to the surface it is sprayed into the open air via purpose built aerators. This adds oxygen to the water and aids in the removal of iron and manganese. Chlorine is added to the water to act as a disinfectant against potentially dangerous bacteria. Chlorine is used around the world for water treatment because it is a very effective disinfectant, is economical and provides protection all the way from the treatment plant through to the customer’s tap.From the aerator, the water is then passed through sand filters, which are large tanks each standing seven metres high. The water is pumped into the bottom of the tank and then it slowly rises through the layers of sand. The sand captures iron, manganese and any other impurities in the water. The impurities which are trapped in the sand are removed via a continuous backwashing process. Waste water from this process is captured and the impurities allowed to settle out in large settling tanks. The impurities are then concentrated into a product known as sludge and dried in sludge drying beds.The filtered water which discharges though the top of the sand is then safe to drink and complies with all of the requirements of the Australian Drinking Water Guidelines. From there it is pumped to one of Aqwest’s water reservoirs ready to be delivered to our customers’ taps.
The Overflow - Summer 2020
19
EXTENSIVE REVIEW
of WA's plumbing laws and its impact on the irrigation industry By the IAL with extracts taken from Department of Mines, Industry Regulation and Safety; Building & Energy website WA’s current Plumbers Licensing Act 1995 has been in place since 2000 and has undergone an extensive review. Changes have been set out in the recently released “Decision Regulatory Impact Statement” (DRIS) which aims to deliver the reforms that are needed, and will ensure that the Western Australian community benefits from a strong and effective regulatory framework for plumbing long into the future.
that some aspects of the work can be safely carried out by people who are not licensed plumbers. Accordingly, the regulation of garden reticulation work is to be managed as set out in Decision Seven below. Further clarification is provided in the table [found in the DRIS – pg 189 https://www.commerce.wa.gov.au/sites/default/files/atoms/ files/plumbers_dris_2019.pdf]
The decisions outlined in the DRIS are not expected to impact the current activities of irrigation contractors and installers, and are essentially “business as usual” for industry. The following information is an extract from the full DRIS document which can be downloaded from the Department of Mines, Industry Regulation and Safety; Building & Energy website. Information relating to “Garden reticulation plumbing work” is found in section 2.4.3 (pg 30) https://www.commerce. wa.gov.au/sites/default/files/atoms/files/plumbers_dris_2019.pdf
As this decision largely clarifies the existing position and does not in itself make any change to the scope of the Plumbing Act or Regulations, no adverse or financial impacts are expected as a consequence of its implementation.
Stakeholders were specifically asked whether: (a) in the case of drinking water, garden reticulation work downstream of the backflow prevention device should be treated as outside the scope of the Plumbing Act and thus able to be carried out by any person and not just a licensed plumber; and (b) in the case of non-drinking water, whether garden reticulation work downstream of the point of connection to the non-drinking water supply should be treated as outside the scope of the Plumbing Act and thus able to be carried out by any person and not just a licensed plumber. Having considered the issues and potential impacts in the light of the consultation feedback, the conclusion reached is that the risks involved with garden reticulation work are such
20
The Overflow - Summer 2020
Decision Seven (a) For reticulation systems that run off a scheme water supply, cutting in to the drinking water supply and installing the required isolating valve and BPD is work that must be carried out by a licensed plumber. Garden reticulation work downstream of the BPD can be carried out by any person. (b) For reticulation systems that run off a rainwater tank or a bore that supplies drinking water, cutting in to the drinking water supply and installing the required isolating valve and BPD is work that must be carried out by a licensed plumber. Garden reticulation work downstream of the BPD can be carried out by any person. (c) For reticulation systems that run off a rainwater tank or a bore that supplies water only for the purposes of irrigation (and thus does not need a BPD to be installed), all work relating to that installation can be carried out by any person.
(d) For reticulation systems that use untreated greywater, work carried out upstream of the in-ground diversion vessel (including a greywater diversion device) is required to be carried out by a licensed plumber. Work relating to the installation or maintenance of the in-ground diversion vessel, or anything downstream from that point, can be carried out by any person. (e) For reticulation systems that use treated greywater, work carried out upstream of the treatment vessel (including a greywater diversion device) is required to be carried out by a licensed plumber. Work relating to the installation or
maintenance of the treatment vessel itself, plus any work downstream of that unit, can be carried out by any person. (f) For reticulation systems that use black/recycled water (i.e. treated wastewater from an on-site treatment unit), work carried out upstream of the treatment unit is required to be carried out by a licensed plumber. Work relating to the installation or maintenance of the treatment unit itself, plus any work downstream of that unit, can be carried out by any person. (This is linked to the discussion around on-site wastewater management systems in section 2.5 [of the DRIS])
The Overflow - Summer 2020
21
Cost-effective pumping during drought
Article by Franklin Electric Large areas of eastern Australia have been in drought for a long period of time, with some areas experiencing drought for up to seven years. This has resulted in dry conditions and surface water scarcity, and a higher dependence on groundwater resources. On top of this, increasing diesel and electricity prices have put pressure on irrigated agricultural production. This has led to irrigators seeking other cost-effective options for pumping water to help them get through the drought. Solar PV has become a popular option in agricultural applications due to its scalability, and it is a proven and widely used technology in Australia and around the globe. This, coupled with government rebates, has seen irrigators increasingly move towards solar as a more cost-effective alternative to traditional diesel and electric pumps. According to Malcolm Eyre, Managing Director at Franklin Electric, solar pumps are becoming increasingly popular as they come in different types — including submersible which is ideal for drought affected areas where groundwater is relied upon — different integration configurations are possible, and they reduce power bills. “While solar pumps have been expensive in the past, they have quickly become a viable option for most irrigators. “Their key benefit is that solar pump systems can be sized to meet any scale of power demand, so the amount of water pumped is only limited to the number of solar PVs you have. “They can also be integrated with mains electricity or diesel to create a hybrid solution to keep operations going even if there is limited sunlight, and they can be set up to only power part of an irrigation system if desired.” Solar powered pumping Malcolm said that solar pump technology has come a long way since it was first introduced, and it is on the cutting edge of design and innovation. This means these pumps are optimised to provide the most water for the least amount of
22 The Overflow - Summer 2020
energy possible, so irrigators can pump more water with less sunlight, making them extremely energy efficient. “By utilising quality components, innovative thinking based on global market inputs, and technical expertise in groundwater pumping, solar pump systems are rugged and have a high-output, which make them ideal for harsh and remote environments. “Systems such as the Fhoton SolarPAK, SubDrive SolarPAK are submersible so they can be used in drought affected areas where groundwater needs to be pumped, as well as for a range of other applications such as livestock watering, rural water supply, irrigation systems, vineyards etc. “These systems come in a variety of sizes to suit a range of applications and can be used in a hybrid system, where electricity or diesel help power irrigation systems when there is not enough light.” As well as helping irrigators save on electricity costs, the solar pump systems may also come with built-in diagnostic and protection features which help prevent surge, underload/ dry run, overvoltage, locked pump, open circuit, short circuit, overheated controller, reverse polarity and deadhead. Other features can include a soft start feature to prevent waterhammer and increase system life. “These help prevent damage to the pump and motor, which in turn provides cost savings in the future as less maintenance will be required.”
Reliable irrigation solutions
Franklin Electric has over 75 years of experience providing industry-leading technical service to the irrigation industry, providing support and advice to keep you pumping in even the most rural areas.
Leading the industry in service standards
ď„ˆ www.franklin-electric.com.au
ď„‹
1300 670 060
IRRIGATION SYSTEM ASSESSMENTS The Department of Primary Industries and Regional Development (DPIRD) recently engaged Irrigation Australia to manage a project to conduct free system assessments of horticultural irrigation systems in the Carabooda, Nowergup and Wanneroo districts north of Perth, WA. A total of 22 system assessments were conducted by Willmott Irrigation on behalf of Irrigation Australia. Of the systems tested, 10 used drip irrigation, while 11 used overhead sprinklers and one system used under-tree mini sprinklers. Each assessment consisted of gathering key information and performing tests on a grower’s irrigation system. The assessed system components could be broadly divided into one of two categories; the pumping system, and the delivery system. Pumping system The pump is a major component of any irrigation system. A pump that runs efficiently reduces costs to the grower by using less energy and requiring less maintenance. Any pumping system operating at less than 50% efficiency is considered poor and should be investigated. Delivery system The best way to test the efficiency of a delivery system is to assess the application uniformity, which describes how evenly an irrigation system applies water over the area being irrigated. Application uniformity was measured using the distribution uniformity (DU) method where a higher percentage indicates greater evenness between the depths of water applied across the field. The minimum industry standard for DU of drip irrigation systems is 85%, while the minimum standard for overhead systems is 75%.
Other tests included pressure variation along mainlines and laterals, pressure differential across filters (if applicable), and flow variation between emitters. Results Assessment results were provided to growers in a ‘traffic light’ format that rated the performance of major system components as; Good, Acceptable, or Poor. These ratings indicate whether the performance exceeded, met, or undershot the industry minimum standard. · Drip systems had an average pump efficiency of 61%, resulting in ratings of either ‘Acceptable’ or ‘Good’. · Overhead systems had an average pump efficiency of 55%, which is within the normal operating range. However three individual overhead systems had pump efficiencies below 50% resulting in a rating of ‘Poor’. · Drip systems had an average uniformity score of 91%, which exceeds the minimum industry standard of 85%. This resulted in all the drip systems receiving a uniformity rating of either ‘Acceptable’ or ‘Good’. · Overhead systems had an average uniformity score of 70%, which is below the minimum industry standard of 75%. This resulted in more than half the overhead systems receiving a uniformity rating of ‘Poor’. Unlike drip systems, uniformity tests on overhead systems are highly impacted by wind conditions. This makes one-off tests somewhat unreliable because a system may score significantly higher or lower depending on the wind speed
Above: Example of a results section of a drip system report
24
The Overflow - Summer 2020
Above: A typical market garden in the Wanneroo area. Conducting tests and inspection of pumping system
amount of over watering required to ensure the crop water requirement is met for the whole crop.No assessed systems had the capacity to regulate pressure at the valves. Pressure regulation can significantly improve system efficiency by limiting pressure fluctuation that can reduce uniformity. With increasing emphasis on water and energy conservation, many systems are being operated at lower pressures. As a result, pressure variations have become a larger percentage of the total, requiring more precise regulation.
Above: Distribution uniformity and pump efficiency scores for drip and overhead systems
and direction at the time of the test. However, the average wind speed in Wanneroo during summer is 11km/hr, while the average maximum wind speed is 45km/hr (DPIRD weather station data). This means that significant wind speeds should be considered the norm and systems should be designed and operated to account for these conditions. Conclusions It was not within the scope of this project to provide recommendations to individual growers. However we can make some general recommendations for improving systems based on our observations of the systems that were assessed.
None of the pumping systems assessed used variable frequency drives (VFDs). Combining the strength of submersible pumps with the efficiency of variable frequency drives creates a tremendous opportunity for pump users to reduce energy costs, improve performance, regulate the output pressure at the pump and extend equipment life. None of the systems assessed incorporated evaporationbased irrigation scheduling in their management plan. Evaporation-based scheduling is part of a systematic approach to efficient irrigation that considers plant and environmental factors to determine crop water requirements. Matching irrigation to crop demand ensures that water is delivered when required and does not exceed the storage capacity of the soil. This method works best when combined with soil moisture monitoring to confirm irrigation effectiveness.
The spacing of sprinklers in overhead systems was often too wide resulting in poor irrigation uniformity, particularly in windy conditions. A high level of application uniformity is one of the key areas for increasing water use efficiency as it reduces the
The Overflow - Summer 2020
25
The goal was to Superintendent golf course and
Article supplied by City of Stirling
H a m e r s l e y P u b l i c Golf The Hamersley Public Golf Course is the City of Stirling’s only public golf course, located on Marmion Avenue in Karrinyup, 12km north of Perth’s CBD. Current facilities include an 18-hole course and an eight-bay driving range managed by 4 full-time maintenance staff and one superintendent. The previous irrigation system was almost 30 years old, installed in 1991, a block irrigation system which was difficult to manage water usage. Over the last decade, components of the irrigation infrastructure needed upgrading including replacements of the steel bores to PVC Bores, Turbine Pumps, Grundfos Submersibles, the main switch board with VFD drives for all pumps, pump controller and the Satellite cubical. In 2015, the City decided to install greenside vale in-head sprinklers to the greens, as the current set up watering the greens and surrounds was performing poorly. As the system aged there were numerous sub-mainline breaks, valve failures, wiring issues and controller issues, making it challenging to manage the water application, as well as the water licence for the golf course. The depth of the old system was also a challenge to repair as the depth varied between 1m to 1.3m. There were also a mixture of sprinklers including Toro Golf, Rain Bird Gold, Hunter I25’s, as well as Rain Bird 8005’s! In 2019 it was decided to install a new irrigation system. The works were awarded to LD TOTAL, who sub-contracted works to Newground Water Services. After lengthy investigations, inspections and discussions with other local golf courses, the decision was made to install the Toro Lynx Smart Hub control system. Toro Lynx control system is user friendly, has 24 hours NSN support and provides remote access through dedicated Lynx Mobile Apps which assist with carryout of maintenance and upkeep. Lynx Mobile Apps offer map and numeric based interfaces for
26
The Overflow - Summer 2020
manual irrigation, as well as an easy way to scan or edit Lynx Smart Module (LSM) and decoder addresses. Toro Infinity Series sprinklers provide easy arc adjustment, nozzle replacement and all critical components can be serviced from the top without digging. This improves course quality while cutting sprinkler maintenance from hours to minutes. Infinity sprinkler models with LSM feature an LED light which lights up when the module is receiving the signal. If the computer is down, the irrigation can still be operated from the Lynx Smart Hub pedestal in the field. The Design Process: Over 2016 and 2017, plans were drafted, and re-drafted to the City of Stirling’s design specifications so budget estimates could be prepared. This took several months, many site visits and ongoing consultation between council staff, designers and golf superintendents to design mainline routes, lateral line and sprinkler locations. Design elements included: • Allowance for future water reductions from the Department of Water & Environmental Regulations. • Mainline size to have capacity to deliver adequate water to the backend of the golf course, and to have a lifespan to last 30 years of iron build-up. • Sprinkler polyline sizes; fairways: 63mm, tees: 75mm and greens: 90mm (already installed in 2015). • Sprinkler spacing 16m maximum (34 nozzles), TEES maximum 15.5m (32 nozzles) The Construction Process: Effective and open communication was essential between all parties involved with the works. Daily meetings were held with City of Stirling - Irrigation Supervisor; Kevin Zoccoli, Golf Superintendent; Craig Hamilton and lead installer; Aaron Heike.
put in an irrigation system that will help the achieve the requirements to water the turf within the help manage the water licence as the end user. The pegging out of sprinkler locations involved all parties to ensure the design specifications of the City were met, the practical application was covered from the superintendent’s perspective, as well as the expert input of the installer.
Course
To ensure easy locating in the future, the isolation valve was placed 700mm from the first sprinkler on each fairway. The top valve box was removed from all sub-mains sprinkler lines to reduce maintenance. A 3m marker ball was placed in each, so it was also easy to locate, also 700mm wfrom the first sprinkler. Golfer’s considerations: • Player fees were reduced during the construction period. Players were only charged a 9-hole fee, but had the option of playing 16-holes. • Two holes were closed at a time for OHS requirements so that workers could traverse the course safely. • Work started on the mainline on the front 9-holes so that the back 9 holes were unaffected for play. • Signage for golfers (walking up the path) at the first TEE fence, on the front notice board and on entrance to the pro shop. • Signage placed on a Friday afternoon for the following week work
LYNX MOBILE APPS ®
Provides remote control anytime, anywhere.
Control your irrigation system from your smart phone or tablet. Lynx Mobile Apps offer map and numeric based interfaces for manual irrigation, as well as an easy way to scan or edit LSM addresses.
Lynx Map
Lynx Handheld
The goal was to put in an irrigation system that will help the Superintendent achieve the requirements to water the turf within the golf course and help manage the water licence as the end user. All city irrigation staff, golf course staff and superintendent, and the contractors are commended for a very successful project. Available for both iPhone® and Android™ devices.
Lynx Barcode
NSN® Connect V2
Golf course Irrigation systems are specialised, and we don’t do them regularly like other systems. This has been a great project to manage with no formal complaints received from players during the 16 weeks construction. Feedback from golfers has been positive with regards to consultation and signage, showing that effective communication is the key factor with works of this size.
1300 130 898 toro.com.au
The Overflow - Summer 2020
27
Weather Smart Be part of the weather Irrigation irrigationRebate rebate
smart
Receive up to $200 towards weather smart irrigation Weather smart irrigation uses local weather data to determine watering needs and adjust to the optimal sprinkler run time.
How to claim the rebate 1
Water Corporation is offering a rebate of up
See the list of eligible products at the bottom of the page.
to $200 for the purchase and programming of eligible weather smart irrigation products.
Who can apply for the rebate? You are eligible foris the rebateaifrebate you are Corporation Water Corporation offering of aupWater to $200 for the customer in the Perth metro area, who has not previously purchase and programming of eligible weather smart irrigation claimed a rebate for an irrigation product. products to help households save precious water. Rebates will only be available on eligible products and
services purchased September 2019which and 31 May Households keen tobetween adopt the1 new technology, uses 2020.weather You candata claim product is operational at the local to once adjustthe sprinkler watering times and property and programmed by a Waterwise Irrigator. reduce over-watering, will require advice fromGarden industry specialists equipped to promote best-practice water efficiency Rebates are limited to 600, so get in quick! measures in gardens. Please read the full terms and conditions before purchasing a product at watercorporation.com.au/irrigationrebate
This is a great opportunity for Waterwise Garden Irrigators and Waterwise Irrigation Design Shops to reach new customers or upgrade existing customers, while sharing your knowledge and creating a more waterwise Perth.
Select a product
2
Purchase your product
Purchase from a retailer of your choice, just make sure you keep your receipt. We have a list of Waterwise Irrigation Design Shops in Perth that stock eligible products at Water Corporation residential customers in the metropolitan watercorporation.com.au/irrigationrebate
area who have not previously claimed an irrigation product rebate3are Installation eligible to applyand by providing: programming
You’ll need yoursmart product set up bythe a • proof of purchase for to thehave weather product and Waterwise Garden Irrigator - you can find a list on programming; our website. Your irrigator will also need to complete • a copy of the water bill for the property where the controller/ the form on the back of this page for you. component is to be installed; and • a copy of the completed programming checklist (you can 4 Apply for the rebate access this at watercorporation.com.au/irrigationrebate and need three documents handy: supply it toYou yourwill customers). •
Itemised receipts
•
A copy of your water bill
Rebates are• available for purchases Completed form from made your between 1 September 2019 – 31 May 2020 and the offer is limited to Waterwise Garden Irrigator the first 600 customers. Then, fill out the form at promote the offer, email For digital or printed material to help watercorporation.com.au/irrigationrebate marketing@watercorporation.com.au
Eligible products Brand and Model
Detail
Weather source
Remote access
Hunter Hydrawise
Hunter (Hydrawise) Wi-Fi Controller
Internet
Yes
Hunter Solar Sync
Hunter Solar Sync ET Sensor for connection to a compatible Hunter controller (i.e. X-Core, Pro-C or ICC).
Onsite weather station
No
HR Products Orbit B-Hyve
Orbit B-Hyve Smart Wi-Fi Irrigation Controller
Internet
Yes
Rain Bird LNK
Rain Bird LNK Wi-Fi Module for connection to a compatible Rain Bird controller (ESP-RZXe, ESP-Me or ESP-TM2).
Internet
Yes
Weathermatic Smartline
Weathermatic Smartline weather station (SLW) for connection to a compatible Weathermatic Smartline Controller (e.g. SL1600, SL4800).
Onsite weather station
Yes
28
The Overflow - Summer 2020
Water Update
Supplied by the Water Corporation Current graphs can be found at www.watercorporation.com.au
Water Usage Metro Region
Yearly Streamflow
Perth Rainfall Comparison
28.1.20
The Overflow - Summer 2020
29
Have you visited the
Whether you are starting from scratch or wanting to improve your existing system, talk to a Waterwise Garden Irrigator for professional irrigation design, installation and maintenance services. If you prefer to do-it-yourself, get expert advice and quality parts from your local Waterwise Irrigation Design Shop (retail outlet).
WA Waterwise PROGRAMS Website?
To find a Waterwise professional in your local area, simply scan our QR code to search the Waterwise Irrigation Directory, or visit our website wa.waterwiseprograms.com.au
www.wa.waterwiseprograms.com.au
Search the Waterwise Irrigation Directory
Alternatively please contact us on: (08) 9368 3136 | adminsupport@irrigation.org.au | wa.waterwiseprograms.com.au
The Waterwise Garden Irrigator Program is a joint initiative of the WA Region of Irrigation Australia and Water Corporation, with a goal of optimising water-use efficiency of domestic irrigation systems in Western Australia. Endorsed Waterwise Garden Irrigators are fully trained in water efficient practices and can design, install, repair and maintain home garden irrigation systems.
Waterwise Garden Irrigator
30
Waterwise Garden Irrigator
Waterwise Garden Irrigator
AAA Irrigation
Jim's Mowing Wilson North
Reticulation Pro
Addwater Reticulation
Landscape Elements Pty Ltd
Softscapes & Reticulation Pty Ltd
Adonis Gardening & Irrigation
Landscape Works WA
Sprinkler Fixers
All water irrigation
LD TOTAL
Superior Landscaping & Reticulation
AllStyle Gardens
Love My Retic
The Garden Fixer
Allwest Bores & Reticulation
Luke's Landscaping Co
The Greenscape Collective
B & C Fiorini Pty Ltd
MacKenzie Landscapes
The Retic Company
Bolesta's Backyard Creations
Midwest Turf Supplies
The Retic & Landscape Shop
Bowie Irrigation
MJ Landscaping
The Watershed Water Systems Midland
Bradkaz Irrigation
Mr Retic
Think Water Dunsborough
Brookwell Irrigation
Peel Scape Solutions
Think Water Geraldton
Civic Reticulation
Perdita Reticulation & Garden Solutions
TLC Services Perth
Clackline Reticulation
Perfect Home Solutions
Top Dog Landscaping and Reticulation
Coast to Coast Irrigation
Perth Lawns and Retic
Total Eden
Condo Landscapes Pty Ltd
Perth Reticulation Service
Turfed Out
Country Landscaping Pty Ltd
Pimp My Yard
Ultimate Blue Pty Ltd
Earlybird Landscaping
Plantech Grounds Maintenance
Urban Outlook Landscape Construction
Earth & Water Pty Ltd
Portworks
WA Reticulation Supplies
Elliotts Irrigation Pty Ltd
Prime Landscaping Pty Ltd
WaterLink
Evergreen Blades
Prime Yard Service
Waterwise Landscaping
Evergrow Gardenscapes
PTC Irrigation
Waterwise West
First Element Irrigation
Pumps N Pipes Supplies
Westcoast Reticulation Services
FPM Landscapes Pty Ltd
Rain Maker Irrigation Services
Wet Frog Retic
Garden Solutions
Rapid Retic
WF Landscape Industries Pty Ltd
Growing Assets
Retic Express
Wild Earth Landscapes
Instant Gardens
Retic Turf & Soakwells Pty Ltd
Willetton Landscapes
Irriscape Reticulation & Landscaping
Reticulation & Gardens Perth
The Overflow - Summer 2020
The website features an extensive and up-to-
date business directory where the community can search for their local Waterwise members, based on their location. Head to the search directory at
www.wa.waterwiseprograms.com.au for members’ contact details, or if you’d like information on how to become an endorsed Waterwise business.
With an increasing number of DIY enthusiasts installing and maintaining their own irrigation systems, the Waterwise Irrigation Design Shop Program was developed to raise the standard of irrigation advice and design services offered by staff at counter level of specialist irrigation retailers. Endorsed staff have the knowledge and skills to provide their customers with waterwise advice, products and services.
Waterwise Irrigation Design Shop
Waterwise Irrigation Design Shop
Addwater Reticulation - Maddington
Think Water Dunsborough
Controlled Irrigation Supplies - Joondalup
Think Water Geraldton
Elliotts Irrigation Pty Ltd- Greenwood
Total Eden Watering Systems - Balcatta
Muchea Irrigation & Rural Supplies
Total Eden Watering Systems - Bibra Lake
Rainscape Waterwise Solutions - Bibra Lake
Total Eden Watering Systems - Byford
Reece Irrigation - Belmont
Total Eden Watering Systems - Canning Vale
Reece Irrigation - Canning Vale
Total Eden Watering Systems - Greenwood
Reece Irrigation - Malaga
Total Eden Watering Systems - Joondalup
Reece Irrigation - Osborne Park
Total Eden Watering Systems - Malaga
Reece Irrigation - Rockingham
Total Eden Watering Systems - Mandurah
The Retic & Landscape Shop- Southern River
Total Eden Watering Systems - Midvale
The Watershed Water Systems - Cockburn
Total Eden Watering Systems - Myaree
The Watershed Water Systems - Midland
Total Eden Watering Systems - Osborne Park
The Watershed Water Systems - Morley
Total Eden Watering Systems - Rockingham
The Watershed Water Systems - Subiaco
WA Reticulation Supplies - Armadale
Think Water Broome
WA Reticulation Supplies - Midland
The Overflow - Summer 2020
31
you can’t beat
The Original
water is precious. put your trust in the original.
For more information please contact your local Philmac dealer or call 1800 755 899 32 PHI0533-04/19
The Overflow - Summer 2020
