What is the optimal pH range for swimming pool water?

The optimal pH range for swimming pool water is 7.2 to 7.8. Maintaining the pH within this range is crucial for several reasons. First, it ensures swimmer comfort; a pH that is too low can cause skin and eye irritation, while a high pH may lead to decreased efficacy of chlorine and other sanitizers.

This pH range also promotes effective chlorine disinfection, as the chlorine is most active when pH levels are between 7.2 and 7.8. When the pH is outside of this range, the hygiene of the pool can be compromised, leading to potential health risks for swimmers.

Moreover, maintaining a stable pH level aids in protecting pool equipment and surfaces from corrosion or scale buildup, ultimately extending their lifespan and maintaining the clear aesthetic of the water. Keeping the pH in this optimal range requires regular testing and adjustment, a critical responsibility for a certified pool operator.