Brand: SeaKlearFeatures: 4 Pack SeaKlear Pool Yellow Klear 2Lb For use to control and prevent algae growth and to maintain clear water in swimming pools Sodium Bromide formula Effective against yellow and green algae. Algae treatment solution to remove visible algae accumulations Add 4-ounce per 10000-gallon of pool water, close to the affected areas Details: Effective against yellow and green algae Simple and easy to use Made in the United States Product Dosage To remove visible algae accumulations: Brush areas affected with algae accumulations. Add 4 oz. (1 capful) of SeaKlear Yellow Klear per 10,000 gal. of pool water, close to the affected areas. For severe accumulations, add 8 oz. per 10,000 gal. To activate, add one of the following for each 10,000 gal. of water: 1 lb. dry chlorinating compound (calcium hypochlorite dichloroisocyanurate), 2 lbs. lithium hypochlorite (35 percent), 1 gal. sodium hypochlorite (liquid chlorinating compound) 10û12 percent, 2 gal. sodium hypochlorite (liquid chlorinating compound) 5.25 percent, or 1 lb. potassium.