Pool Bug Off made by Lo-Chlor eliminates insects from your pool water surface. This unique product is made of a non-foaming formulation. It reduces the surface tension of pool water, completely ridding the pool surface of floating insects. With reduced surface tension insects cannot float and they sink to the bottom of the pool where they are filtered or vacuumed away. For best results, add as close as possible to the problem area of your pool. Repeat the application if necessary. Do not add this product to your skimmer basket. Our 1-quart bottle treats up to 10,000 gallons of pool water. Rid your pool of nasty insects with Pool Bug Off!