Algaecide in liquid form that acts penetratively in the water as an inhibitor of algae and helps the more effective action of chlorine. When algae enter the water, they can create stains on the walls or floor of the pool, and additionally, severe weather conditions, the presence of nitrogenous materials, and sudden changes in the pH value of the water, facilitate the growth of algae. By adding chlorine to the pool water and then feeding it with algaecide, you can control and prevent the reappearance of algae.