What is the effect of high pH levels in pool water?

High pH levels in pool water can lead to several issues, with one significant effect being skin irritation and mineral buildup. When the pH of pool water rises above the recommended range (typically between 7.2 and 7.8), it can become more alkaline. This elevated alkalinity can cause skin and eye irritation in swimmers, as well as discomfort during use.

Additionally, high pH levels can lead to the precipitation of minerals like calcium and magnesium, which may deposit as scale on pool surfaces, in plumbing, or on equipment. This buildup not only requires additional maintenance to remove but can also impair the functionality of pool systems, making regular monitoring and adjustment of pH levels crucial for maintaining a safe and pleasant swimming environment.

In contrast, while higher pH might seem beneficial regarding chlorine effectiveness, it actually decreases the efficacy of chlorine as a disinfectant in water. Therefore, maintaining proper pH levels is essential for both swimmer comfort and effective sanitation.