This is a 25 pound pail of highly concentrated chlorine granules used on white plaster pools only for sanitation and algae removal. This trichloro-s-triazinetrione chlorine product is in the form of concentrated granules and contains 90% available chlorine. Trichloro-s-triazinetrione kills and controls bacteria and algae.
Active Ingredient of the DuraChlor Super 90: 99% Trichloro-s-triazinetrione.
Directions for Adding DuraChlor Super 90 to Your Swimming Pool for Super-chlorination:
Check residual chlorine. If below 1.0 ppm, broadcast over the deepest end of the pool at night or when no one is using the pool. Add 4 ounces for every 12,000 gallons of pool water with pump running. Repeat application until a 1.0-1.5 ppm residual chlorine is obtained. In extremely hot weather or extreme bathing loads, a shock dosage of chlorine may be obtained by broadcasting 1 ounce of this product for every 6,000 gallons of pool water. Be sure to measure pH immediately after application. Adjust pH to 7.2-7.8 if necessary.
Directions for Adding DuraChlor Super 90 to Your Swimming Pool for Algae Removal:
Turn off pump before application. Brush algae spots with a steel brush before adding this product. Sprinkle this product directly over the pool walls and floor on which algae appears. Use approximately 1 pound per 10,000 gallons of pool water. For severe cases, the dosage may be doubled. Filter pump can be turned on after this product has been in the pool for at least 8 hours. Brush pool again with stainless steel brush. Do not use pool until chlorine residual falls below 3.0 ppm.
