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Providing Control And Balance Reliable, essential and increasingly high tech, dosing pumps and control systems are the unsung heroes in a water treatment system and quietly go about the business of delivering regular and accurate amounts of chemicals into pools and spas. Convenient and easy to use, the automation they provide has made the life of pool and spa owners that much simpler and we examine what’s available By Karen Witney


ome might say that Health & Safety has gone mad recently with crazy diktats such as “do not wear goggles in the swimming pool”… what? There are many other examples too, however, the one area where health and safety does make sense in a pool situation is on the subject of automatic control – both in and around the pool. Automation in the plant room prevents over or under use of water treatment products ensuring bathers are swimming in clean well balanced and disinfected water. Add to that the automatic shut down of pool equipment such as pumps and heaters should there be a problem picked up by the automated monitoring devices that are becoming more and more technically ingenious in the tasks they are set to perform. No longer a preserve of the commercial operator, these inspired oracles are a valuable addition to any domestic installation where the pool owner wants to ensure their investment is protected resourcefully and automatically.

KNOWLEDGE, UNDERSTANDING AND OPTIONS FROM CERTIKIN The CertiDos range has been under ongoing development for the last five years. Certikin had almost a 30 year background in chemical dosing before embarking on their own range. However, with each year, they learn something new about how the range can work best for both the trade and end users. With a vast array of equipment at their disposal, the options for each application are numerous to say the least. They have learnt that technical knowledge is, of course, important but understanding the brief from the client, as well as budget and expectations, is also fundamental. In terms of the equipment offered, they focus on three types of sampling probe to control sanitiser addition. Redox electrodes and Open and Closed Amperometric electrodes. Redox systems have been around for many years and continue to provide an economical means of monitoring pool/spa 55-58_SPN_Dec_15_Dosing_Pumps_Feature_rev.indd 55

Quiet in operation Certikin’s peristaltic pumps are ideal for use in wellness suites

water quality. Certikin market redox systems mainly for domestic applications. For commercial applications, amperometric systems are the standard. Both open and closed amperometric probes have their own set of considerations to take into account when specifying. Being pH independent and ion selective, the closed probe is the more reliable and stable option. However, where there are obstacles to using this type of instrument, an open electrode can be a satisfactory alternative and is suitable for most applications. Certikin’s controllers range from single to multi parameter, are easy to navigate and come with a number of pump output options. Any of the dosing pumps they offer can be linked to these controllers. Whether you require manual or pulse proportional, wall mount or foot mount, 1ltr/hr or high capacity, they have a very broad range of pumps available. Predominantly manufactured from PVDF, their pumps are very robust.

CertiDos Controllers can be remotely accessed from any web enabled device

This includes peristaltic pumps which they have been rolling out over the last year. Certikin have taken their time developing a very reliable option. Low pressure and quiet in operation, there is a very real need for this type of pump, particularly in domestic applications and wellness suites. As well as the sampling and control

SPN December 2015 55 20/11/2015 11:51

SPN (Swimming Pool News) December 2015  

Informing the pool and spa industry since 1959. Covering the UK's wet leisure market, SPN (Swimming Pool News) is the UK's longest running a...

SPN (Swimming Pool News) December 2015  

Informing the pool and spa industry since 1959. Covering the UK's wet leisure market, SPN (Swimming Pool News) is the UK's longest running a...