For sump pump applications the THD1020 can be used with any 1.25 in. or 1.5 in. sump pump. The THD1020 features 1.25 in. or 1.5 in. combination rubber adapters and the industry's most durable check valve.

2025年2月2日 · Your check valve helps the sump pump system run properly and keep water flowing in one direction, out of your home. Without a functional check valve, your sump pump will be useless and can even become damaged.

Westinghouse Silent Sump Pump Check Valve, Fits 1-1/2" Pipes, Clear, Spring Loaded Flapper, Eliminates Water Hammer Noise, Includes Steel Clamp - Keep Sump Pumps Quiet

A sump pump check valve is a one-way valve that allows water to flow in only one direction, which is away from your home’s foundation. Without a check valve, your sump pump would have to work extra hard to push water up and out of your home, which could lead to premature wear and tear.

Maximize flow from your sump pump with this PumpSpy check valve. It stops water remaining in the sump discharge pipe from falling back into the sump pit. This avoids pumping the same water twice, extending the life of your pump.

We checked compatibility, discharge size, building material, and PSI to find your home’s best sump pump check valve. For a check valve that works with almost any 1-1/2 Inch pump we recommend the Zoeller 30-0181. The Zoeller 30-0181 was our favorite check valve.

This Sump Pump check Valve is designed to help stop pumped water from flowing back into the basin. Each valve is constructed of an ABS material and rubber adapters with stainless steel hose clamps. Can be used with 2 in. sump pumps.

Learn to install or replace a sump pump check valve with easy steps for safety, valve location, removal, and installation, ensuring efficient operation.