What impact does high alkalinity have in a pool?

High alkalinity in a pool is closely associated with the concept of pH balance. When alkalinity is elevated, it can cause pH levels to become resistant to change, a condition often referred to as "pH lock." In this state, even when adding chemicals to adjust the pH, the levels may not respond appropriately, leading to difficulties in maintaining optimal water chemistry.

The effect of high alkalinity on pH lock can create challenges for pool maintenance, as keeping the pH within the ideal range (typically between 7.2 and 7.8) is crucial for ensuring the water is safe for swimming and for the effectiveness of sanitizers like chlorine. Understanding this relationship is essential for anyone managing pool water quality, as it directly impacts overall water clarity and safety.