What is the maximum legal range for Total Dissolved Solids in pool water?

The maximum legal range for Total Dissolved Solids (TDS) in pool water is established at 1,500 parts per million (ppm). TDS measures the combined content of all inorganic and organic substances present in pool water, including salts, minerals, and metals. Maintaining TDS within the appropriate range is crucial for several reasons.

Firstly, if TDS levels are too high, it can lead to cloudy water, make the pool water uncomfortable for users, and create challenges in managing water chemistry. High TDS can also interfere with the effectiveness of sanitizers like chlorine, leading to reduced water quality and safety.

Understanding the implications of exceeding this limit helps pool operators ensure that the water remains within health and safety standards. Keeping TDS at or below 1,500 ppm supports optimal pool operation and enhances user comfort. Thus, the correct response aligns with best practices in pool management.