AquaChem 05704AQU Pool Chemical, 4 lb Jug

A properly balanced pool means the water has the right pH, total alkalinity and calcium hardness levels. Proper balancing helps your chemicals such as chlorine to work more effectively, saving you money by reducing the amount of product you need over time. pH Up is required if water testing results indicate a ph lower than 7.2. Low levels of pH that can lead to eye irritation and corrosion of equipment and pool surfaces.