What pH level is recommended for testing the disinfection efficacy of pool water?

The recommended pH level for testing the disinfection efficacy of pool water is typically within the range of 7.2 - 7.6. This range is optimal because it provides an effective environment for chlorine to work efficiently as a disinfectant.

At this pH level, chlorine is more effective in killing pathogens and microorganisms present in the pool water. Below 7.2, the effectiveness of chlorine can decrease, and water can become corrosive, potentially causing damage to pool equipment and surfaces. Conversely, if the pH level moves above 7.6, it can lead to problems with chlorine stability and may reduce its ability to disinfect, leading to cloudy water and increased sanitizer usage.

Maintaining the pH within 7.2 - 7.6 is crucial for ensuring that the pool remains hygienic, safe for swimmers, and that the water chemistry is balanced. This pH range also helps prevent skin and eye irritation for users.