HTH Green Algaecide kills green algae on pool walls. The product contains a built-in flocculant to trap fine particles and add sparkle to your pool. Before using HTH Green Algaecide it is important to ...

Algae can cause cloudy pool water. Algae come in many types and colors, not just green. The first step to treating algae (assuming the chlorine level is adequate) is to identify what color it is.