Eclipse3 Granular Powder Algaecide For Swimming Pools, Spas & Hot Tubs - 2 lbs

For the first dosage: add 20 oz. per 10,000 gallons of water / then only add 1.25 oz. per 10,000 gallons. Now being used by Six Flags. Allows pool and spa owners to add less chlorine and bromine and still maintain crystal clear water in their pool or spa.

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