The right pH level is vital for proper chemical balance in the pool. Ideally, pH should be between 7.2 and 7.8. pH is measured on a scale of 0-14; 7.0 is considered neutral.
Low pH (too acidic) leads to corrosion in pumps and other mechanical systems and causes dry skin, brittle hair, and itchiness in swimmers.
High pH (too alkaline) causes murky, cloudy water and mineral deposits in the pool. It will also not be able to work efficiently as a sanitizer.