What is the ideal pH range for pool water?

The ideal pH range for pool water is between 7.0 and 7.4. This range is considered optimal for a number of reasons. First, maintaining this pH level ensures that the water is comfortable for swimmers, preventing eye and skin irritation that can occur when pH levels are too low or too high.

Additionally, a pH in this range enhances the effectiveness of disinfectants like chlorine. If the pH is too low, chlorine can become more corrosive, potentially damaging the pool infrastructure. Conversely, if the pH is too high, chlorine becomes less effective as a disinfectant, which can lead to water quality issues. Furthermore, a balanced pH helps prevent scaling and corrosion of pool surfaces and equipment, ensuring a longer lifespan for the pool infrastructure.

The other ranges provided do not meet these essential criteria for swimmer comfort and water sanitation. For example, a pH lower than 7.0 can lead to acidic water, while a pH above 7.4 can result in alkaline conditions, both of which can cause problems in pool maintenance and swimmer safety.