DOSING PUMPS & CONTROL SYSTEMS
Control Is The Key To Water Quality As increasingly high tech dosing pumps and control systems quietly go about the business of applying the correct amounts of chemicals to leisure water, it’s sometimes easy to forget the role these reliable products play in making the lives of owners and operators so much easier. In fact, as shown, the latest innovations mean ensuring the management of safe water plus other connected equipment has never been as simple or more convenient! By Jon Wadeson
T
o have perfectly clear and safe water within pools and spas is the holy grail for both owners and operators alike. After all, safety must always be at the top of the list when it comes to water leisure. Convenience comes in second though, and for both commercial operators and an increasing number of domestic owners too, it’s reassuring to know that there are products and systems that expertly and conveniently control water treatment automatically, and in doing so, make the task simple plus remove any guesswork. Commercial facilities have enjoyed the comfort of automation for many years but as technology has advanced and along with the ranges from manufacturers, domestic owners have now got firmly behind these solutions and the many benefits they offer. In many systems, automatic management can be extended beyond just water supervision, with these single solutions being responsible for lighting, heating, maintenance routines or other tasks too. In many cases, remote operation is possible too, with systems being controlled via a smartphone, tablet or computer, meaning a pool or spa can be primed and ready for use well before the user has even donned any swimming gear. In fact, today’s systems are less complicated and a lot more user-friendly than expected, meaning that the most technically unskilled person can ensure perfect water management and more. Today’s automated systems offer more than just precision, they also put a big emphasis on flexibility, reliability and convenience and we take a look at what’s available.
LUTZ-JESCO’S MEMDOS SMART RANGE OFFERS ACCURACY AND CONVENIENCE Solenoid dosing pumps have been the mainstay for chemical dosing applications
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within swimming pool water treatment over the last several decades from dosing of sodium hypochlorite or calcium hypochlorite for disinfection and hydrochloric acid for pH correction. Initially dosing pumps employed stroke length adjustment to alter output by reducing the volumetric stroke per pulse and then manual speed in addition to regulate the stroke frequency, i.e. number of strokes per minute. In the last two decades, dosing pumps have seen tremendous developments that include digital displays highlighting flow rate in l/h or ml/h making them easier to use within all chemical metering applications and to automatic degassing heads or valves for sodium hypochlorite. Lutz Jesco have built on these
developments with their Memdos Smart metering pumps that feature a removable display for wall mounting when pump installation is difficult to access. A clear user interface with structured menu navigation ensures simple and understandable operation plus password protection is freely adjustable for different menu areas, thus allowing different user levels / releases. With the new stepper motor technology, even the smallest quantities can be metered with a high degree of accuracy. Memdos Smart LBX/LDX options with variable speed stepper motor dosing pumps offer quieter, smoother and almost continuous dosing for chlorine and acid with the company’s Memdos Smart LDX 2 model proving to be an ideal pump for dosing PAC down at 2.5ml/h.
CENTURIO POOL AN ALL ENCOMPASSING MULTIPARAMETER CONTROLLER
The new generation of Memdos Smart stepper motor diaphragm metering pumps from Lutz Jesco provides a variety of attractive features
Manufactured by EMEC and supplied by Certikin, the CENTURIO POOL can simultaneously manage up to ten channels to read multiple parameters such as pH, free chlorine, total chlorine, a derived combined chlorine reading, conductivity and ORP. Traditionally, operators concentrate on monitoring and manually testing their free chlorine and pH levels. However, engaging with other areas of water quality could have a positive impact on energy and water savings. Take Total Dissolved Solids (TDS) as an example. With a CENTURIO POOL owners can have a conductivity probe so that TDS can be continually monitored and displayed alongside free chlorine and pH. The deterioration of water quality against TDS data could allow an operator to implement an operational dilution program at the lowest possible cost. This is just one example of how interacting with water quality data can assist with better managing utility costs. CENTURIO POOL can be connected to the internet via Wi-Fi, GSM or ethernet
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