Cloudy or dull pool water can be related to improper chemical balance, or fine debris suspended in the water. The first step to resolving a cloudy pool water problem is testing the pool water for Comined Chlorine, pH, Alkalinity and Calcium Hardness. The two areas that are most likely to cause cloudy pool water are the pH and the Calcium Hardness. If the pool chemical levels are not within the suggested ranges below, adjust and run the pool filter system for 12-24 hours before re-testing. If the pool was clear before and just became cloudy immediately after adding products to adjust the pool chemical levels (such as pH increaser or decreaser), the pool water may still be adjusting to the changes you