Jack's The Yellow Stuff Pool Algaecide
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The yellow stuff is a powerful all-purpose algaecide. It quickly eliminates all types of algae breakouts and is also a highly effective algae preventative. Safe for all pool finishes and works all major pool sanitizing systems. Swimming can resume in a few hours. Use 4-ounce per 10000-gallon. Includes 1 pack of 2-pound weight.