Why is high pH considered a problem in swimming pools?

High pH levels in swimming pools can lead to multiple issues that affect both the comfort and safety of pool users as well as the effectiveness of pool maintenance chemicals.

When the pH of the water rises above the ideal range (usually between 7.2 and 7.8), several problems can arise. One significant consequence is that high pH can irritate the eyes of swimmers. When the water's pH is too high, it can cause discomfort, leading to red or itchy eyes, which detracts from a pleasant swimming experience.

Additionally, high pH levels can significantly reduce the effectiveness of chlorine, which is crucial for keeping the water sanitized. Chlorine works optimally within a certain pH range, and if the pH climbs too high, the ability of chlorine to kill bacteria and other pathogens diminishes considerably. This can lead to unsanitary conditions in the pool, increasing the risk of waterborne illnesses.

Moreover, elevated pH levels can lead to cloudy water. When pH is too high, it can cause calcium carbonate to precipitate, which contributes to a cloudy appearance and can also lead to scaling on pool surfaces and equipment. This not only makes the pool aesthetically unpleasing but also necessitates additional maintenance