PolyQuat 50 is a powerful algae suppressant and killer.
PolyQuat 50 is used with PolyClear Maxipolish and PolyShock in a non-chlorine system to maintain sparkling clear water in your pool or spa.
Apply only 6 ounces to intially treat 10,000 gallons of water and then only a 1.5 ounce maintenance dose thereafter.

PolyQuat 50 will control and inhibit the growth of Green Algae, Black Algae, Square D Algae, Blue-Green algae and many others.

Please read the instructions carefully.
Please note that this system is not compatible with chlorine or bromine.