This non-foaming Algaecide is used to control the growth of algae in swimming pools, exterior spas, whirlpools and hot tubs. Treats green, black and yellow algae. 32oz Bottle
Safe and effective for all types of pools.
Add 18 fl. oz per 10,000 gallons of pool water for the initial dose.
Subsequent additions of 6 fl. oz. per 10,000 gallons should be made every 5-7 days.