What is the legal range for total alkalinity (TA) in pool water?

The legal range for total alkalinity (TA) in pool water is indeed 60-180 parts per million (ppm). Total alkalinity serves as a buffer for pH levels in pool water, helping to stabilize them and prevent rapid fluctuations that can lead to equipment corrosion and irritation for bathers. Maintaining the proper TA level within this range is essential for effective chlorination and ensuring the overall health of the pool water.

If the total alkalinity is too low, it can lead to pool water becoming more acidic, which can cause both pH and corrosive problems. Conversely, if the total alkalinity is too high, it can make it difficult to maintain the desired pH level and can lead to cloudy water conditions. Therefore, the specified range of 60-180 ppm is critical in maintaining balanced water chemistry for safe and comfortable swimming conditions.