The pH is a measure that indicates the balance base / acid in your swimming pool. This measurement can be performed manually using a “test kit” or automatically if you are equipped with a pH regulation system (pH Regul link). A high pH will increase the scale accumulation (calcium bicarbonate) on the walls of the pool, and in the processing equipment (filter, pump, chlorinator, heater …) and thus make the water cloudy. The effectiveness of chlorine is directly related to the pH value. For the same chlorine content, the treatment will be more effective if the pH is neutral (7.0) than it is basic (approximately 8.0). A low pH value will favour chemical attack on the parts in contact with water (liners, ladders, pump …) and make water irritating.