What is the minimum required pH level for a commercial pool?

The minimum required pH level for a commercial pool is established at 7.2. Maintaining a pH level within this range is crucial for the health and safety of pool users, as well as for the efficacy of sanitizing agents like chlorine. A pH level of 7.2 ensures that the water is sufficiently balanced, reducing the potential for skin and eye irritation among swimmers, which can occur if the water is either too acidic or too alkaline. Additionally, proper pH levels help to optimize the performance of chlorine, allowing it to effectively kill harmful pathogens and maintain water clarity.

By having the pH at or above this level, pool operators can also prevent damage to the pool equipment and surfaces, which can occur with improper pH levels. This standard is part of overall water chemistry management, a critical aspect of commercial pool operation to ensure safety and compliance with health regulations.