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The recommended pH range for pool water is 7.2 to 7.5 because this level helps ensure the water is safe and comfortable for swimmers. Maintaining the pH within this range is crucial for several reasons.

Firstly, a pH level in this range promotes effective disinfection. Chlorine, a common pool sanitizer, functions optimally when the pH is between 7.2 and 7.5, as higher or lower pH levels can reduce its effectiveness. If the pH is too low, chlorine can become more volatile and irritate swimmers' eyes and skin. Conversely, if the pH is too high, chlorine can become less active, allowing for potentially unsafe pool conditions.

Additionally, a pH range of 7.2 to 7.5 helps in preventing the degradation of pool equipment and surfaces. Water that is too acidic can corrode metal components and damage pool surfaces, while highly alkaline water can lead to scaling and cloudy water.

Maintaining the pH within this optimized range not only enhances swimmer comfort and health but also ensures that your pool remains clean, safe, and well-maintained.