This two-part system turns pool water from green to sparkling blue within 24 hours. The Cal Hypo (calcium hypochlorite) blend destroys bacteria and controls algae while a specially formulated flocculant drops debris to the bottom of the pool for easy vacuum removal. Note: Must be able to vacuum to waste - cannot be used in pop-up pools or pools with D.E. filters Compatible With Chlorine Note: Must be able to vacuum to waste - cannot be used in pop-up pools or pools with D.E. filters Dosage 1 kit treats up to 15,000 gallons Manufacturer GLB Manufacturer Part # 71225 Pool Chemical Type Clarifiers | Cleaners | Enzymes, Kits and Packages Product Features * Use this product to turn a swamp pool to a swimmable pool in less than 24 hours * One kit will treat up to 15,000 gallons of pool water