Pool water is intended for swimming pools, whether public, collective, private or built as part of a spa area. Pool waters include water in municipal swimming pools for all residents for swimming activities as well the water in swimming pools in establishments open to the public (ERP) such as a hotel, a campsite, a holiday village, a gite or a bed and breakfast.
The swimming pools at aquatic fun parks, balneotherapy fitness centres, baths and spas is also considered as pool water for collective use that must be treated. In these shared pools/tanks, health and hygiene rules must be respected to prevent any risks to the health of swimmers and lifeguards. According to current regulations, to disinfect public and collective swimming pools, chlorine is mandatory. Regulations requires the concentration of combined chlorine remains below 0.6 milligrams per litre of water. If baby swimmers also use the pool, this rate should be below 0.4 milligrams per litre of water. But bathers, who are the first contamination target of microorganisms present in the water, are also at their origin. They contaminate the water through hair, skin scales, urine, sweat, saliva, sputum, etc.
In France, our company is the leader in UV dechloramination. More than 2,500 public and collective swimming pools are equipped with UVGERMI units. The UVDECHLO range has been approved by the Ministry of Health since 2006. With this certification, our UV units comply with standards and the quality of their process is guaranteed. UVDECHLO units are sized according to the volume of water to be treated and can range from 10 to 1,050 m3/h.
The sizing of the unit takes into account the maximum recycling flow rate, the volume of water to be treated, the diameter of the pipework, the chloramine level analysed and the number of people using the pool. This massively reduces chloramine levels in the water by approximately 80% on average. Nitrogen trichloride in the air of covered public swimming pools is also reduced by half. Ministerial authorisation is also based on studies showing that UVDECHLO have no effect on THM levels.