Pool Calcium Scale Prevention is an important step in keeping your pool looking good and lasting a long time. High total hardness can cause cloudy water and scale build up on pool equipment and surfaces. High Calcium levels can only be lowered by draining your water and replacing it with water that has a lower Calcium level. Because of this, high total hardness levels are usually treated with scale inhibitors on a monthly basis. We offer a complete selection of scale inhibitors from many manufactures for your pool.