Balance your water to prevent problems. Keeping the right balance in your swimming pool water is important. Balancers control scale, prevent metallic stains, adjust pH and total alkalinity and correct mineral imbalances. How important is pH really?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!