What are important things to do — or look at — when choosing the right UV system for a pool? What important technical actions should be taken during installation? This blog will answer those questions for you, so you can inform yourself or your customers properly before purchasing a UV system for your pool.
Having established the basics, it is necessary to use common sense and discretion in selecting the most appropriate UV system for a particular pool. To do this, the more that is known about the pool and its usage, the better.
The context of the pool must be considered. It would be ridiculous to suggest that a multi-kW, medium pressure UV unit be installed for a 20 m3 household pool when no three phase supply is available and the power consumption of the unit is beyond that which a family could afford.
Equally, it would be inappropriate to suggest that an overloaded, poorly designed municipal public pool would benefit from the installation of a low pressure system delivering a dose of only 30mJ/cm2.
The UV transmissivity of the water is, of course, a very important factor. In the selection of a UV system, it should be generally assumed that the UVT of the pool water will be at least 95%. The filtration and (if necessary) flocculation system should be designed to provide pool water of that quality to the UV unit. In most cases, that should not be too difficult to achieve.