What is the consequence of low total alkalinity in pool water?

Low total alkalinity in pool water primarily leads to insufficient pH stability. Total alkalinity acts as a buffer for pH levels; when it is low, the water becomes more sensitive to changes in pH. This instability can result in rapid fluctuations of pH, making it difficult to maintain it within the ideal range (usually between 7.2 and 7.8).

When the pH is unstable, it can affect swimmer comfort, water clarity, and the effectiveness of sanitizers. Maintaining proper total alkalinity is crucial for keeping the water chemistry balanced, which in turn helps to manage other chemical levels more effectively. Therefore, if total alkalinity is low, it can significantly disrupt the overall water quality and necessitate more frequent adjustments to pH levels to keep the swimming environment safe and pleasant.