Kills black algae on contact
Controls algae - kills bacteria
1lb per 15000 gallons.
Sprinkle product along the walls where algae appears and over the surface where algae is seen on pool bottom. It will settle through the water and kill the algae in a matter of hours. Use 1 lb. per 15,000 gallons of water. Sprinkle lightly on scattered patches of algae. Do not use pool until chlorine residual falls below 3 ppm. Test pool water frequently with a reliable chlorine test kit.
We carry it in 2lb and 25lbs.