What pH level can cause eye irritation in swimming pool water?

A pH level below 7.4 in swimming pool water can lead to eye irritation due to increased acidity. Water with a pH lower than this range is often more corrosive and can irritate the eyes by disrupting the natural protective barrier of the tears and the surface of the eye. When the pH decreases, the presence of hydrogen ions increases, which can lead to discomfort in the eyes as well as skin irritation.

Maintaining the pH level within the recommended range is crucial for swimmer comfort and safety, as well as for the proper functioning of chlorine and other disinfectants used in pool sanitation. Levels that are too low can also affect the overall quality of the water, potentially causing additional issues such as equipment corrosion or changes in the effectiveness of chemical treatments.