Quickly clears cloudy pond water by causing tiny suspended particles of dirt and debris to clump together, forming larger particles that fall to the bottom of the pond and are siphoned out or removed by the pond filter. - Keeps ponds clear during peak summer months - Works quickly - Use in conjunction with Pond-Zyme with Barley for a cleaner, clearer pond - Improves pond filter efficiency - Treats 18,900 gallons