Dennis from Chicago writes
Does it allow water to drain into the pipe? Is it guarantied to stop the drain flies?
The Green Drain Floor Drain Trap Seal is a one way valve that keeps floor drain odors and drain pests underground. It is applied in floor drains, and water can still flow through the drain opening. It keeps them underground in a floor drain. If you have drain flies in other drain openings throughout the structure, you will want to apply the products in our Drain Fly Kit. For more tips on eradicating this insect, please take a few moments to review our treatment article on How to Get Rid of Drain Flies.
Answer last updated on: 01/04/2016