pH is one of the most important components of water balance. ​ Water balance is important for the following reasons: ​
 
prevent disease
protect equipment
provide the expected environment. ​
 
Sanitizers work best in water that is properly balanced. ​ Balanced water is more comfortable for swimmers because it reduces unpleasant odor, burning eyes and itchy skin. ​ Balanced water will also help prevent equipment corrosion and/or scale build up. ​ Improperly balanced water can also become cloudy and unappealing for swimmers.