What is the ideal range for total alkalinity in pool water?

The ideal range for total alkalinity in pool water is crucial for maintaining water balance and ensuring swimmer comfort. Total alkalinity acts as a buffer for pH levels, helping to prevent rapid fluctuations that can result from chemical additions or environmental changes. The recommended range of 80 to 120 ppm is considered optimal because it effectively stabilizes pH levels, making it easier to manage the overall chemistry of the water.

When total alkalinity is within this range, it helps reduce the potential for conditions that could lead to an acidic or alkaline environment, both of which can damage pool surfaces and equipment and irritate swimmers' skin and eyes. Maintaining this specific range supports a more stable pH, reduces the need for frequent adjustments, and contributes to the overall effectiveness of the sanitization process.

In contrast, the other options suggest levels that are either too low or too high, which could lead to water chemistry issues. Low total alkalinity can result in erratic pH levels, while excessively high total alkalinity might make it difficult to lower pH adequately, potentially leading to cloudy water and scale formation.