How Trap Guard® Works

The Trap Guard® sits watertight inside the drain and stays open when water is flowing but closes when the water stops. When the Trap Guard® is closed, it successfully resists any emission of sewer gas, even if that gas is under significant pressure. It uses a flexible tube made of a space age, Elastomeric TM material that is treated to roll up when water is not passing through but is flexible enough to open and permit water flow, from an intermittent drip to fire-hose type flows.

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Trap Guard® US Patent Number: 6,795,987