Having the correct pH in your pool is crucial to your swimmers’ comfort and also protects your pool equipment and surfaces from corrosion, staining and etching. The ideal pH range is 7.4–7.6. If the pH is too high or too low it can cause those pesky red, itchy eyes!

• For raising calcium hardness levels
• Dissolves quickly
• Protects pool equipment from corrosion, plaster etching and wrinkling of liners