Algicide that penetrates the water as an algae inhibitor and helps the more effective action of chlorine. When algae enter the water, they can create stains on the pool walls or floor, and additionally, intense weather conditions, the presence of nitrogenous materials, and sudden changes in the water's pH value contribute to the growth of algae. By adding chlorine to the pool water, and then supplying it with algicide, you can control and prevent the reappearance of algae.