What role does maintaining proper alkalinity play in pool maintenance?

Maintaining proper alkalinity is essential for stabilizing pH levels in pool water. Alkalinity acts as a buffer, helping to resist significant fluctuations in pH when chemicals are added or when other factors impact the water, such as rain or swimmer load. If alkalinity is too low, the pH can become very unstable, leading to erratic changes that can cause irritation to swimmers and damage pool surfaces and equipment. Conversely, if alkalinity is maintained at the correct level, it helps keep the pH within the ideal range, promoting a safer and more comfortable swimming environment. This stability is crucial for overall water chemistry balance, which ultimately contributes to efficient sanitation and clarity of the water.