Jack's Magic JMYELLOW06 6 oz The Yellow Stuff Algaecide is a powerful all-purpose algaecide. The Yellow Stuff quickly eliminates all types of algae breakouts and is also a highly effective algae preventative. The Yellow Stuff is safe for all pool finishes and works all major pool sanitizing systems. Swimming can resume in a few hours.

Product Dosage

Initial: 4 ounces per 10,000 gallons
For severe accumulations, double the dosage.