How to Install or Replace a Check Valve on a Sump Pump
A check valve on a sump pump is a one-way valve that allows water to flow in one direction, preventing it from flowing back into the sump pit. If the check valve is not functioning correctly, it can cause the pump to run continuously or fail to pump water out of the pit effectively. Here are the steps for replacing a check valve on a sump pump:
- Shut off the power to the sump pump. This is an important safety step, as working on the pump while it is powered can be dangerous.
- Locate the check valve. The check valve is usually located near the sump pump outlet, between the pump and the discharge pipe.
- Disconnect the check valve. Depending on the check valve type, you may need to loosen a clamp or unscrew a fitting to disconnect it from the pump and the discharge pipe.
- Remove the old check valve. Carefully pull the old check valve out of the discharge pipe and set it aside.
- Install the new check valve. Slide the new check valve into the discharge pipe and secure it according to the manufacturer’s instructions. Ensure the arrow on the check valve points toward the water flow.
- Reconnect the check valve to the pump and discharge pipe. Tighten any fittings or clamps to secure the check valve in place.
- Test the sump pump. Fill the sump pit with water and turn on the pump to ensure it works properly.
Replacing a check valve on a sump pump requires some basic plumbing skills and knowledge. If you are uncomfortable with this type of work, hiring a licensed plumber to handle the replacement is recommended.
Sump pumps usually last for years without significant problems if given proper attention. When problems do occur, don’t panic. Sump pumps are relatively easy to repair. Most of the sump pump repairs can be done by yourself.
