What Maintenance Keeps a Sump Pump Working Properly?

Testing your sump pump is the single most important maintenance step. Pour a bucket of water into the sump pit, and the float should rise, the pump should turn on, and the water should drain out within a minute or two. If the pump runs but doesn't drain, or if it hums without starting, there may be a clog or a motor issue.

Do this test once a month, especially before the rainy season begins. In this region, the mild climate with dry summers and wet winters means your pump may sit idle for months, then work hard during heavy rains. A quick monthly test catches problems early, so you can fix them before water reaches your floor.

• Pour a full bucket of water into the pit to trigger the float.
• Listen for the pump motor to start and the water to drain.
• Check that the float moves freely without sticking.
• Watch for the pump to turn off automatically after the water drops.
• Repeat the test every month, and after any power outage.

The discharge line carries water from the pump to outside your home. If this line is blocked, frozen, or kinked, the pump will work harder and may fail. Inspect the line for cracks, loose connections, or visible obstructions. If the line exits through a wall, check the outside opening for debris or ice during winter.

The check valve sits on the discharge line and prevents water from flowing back into the pit after the pump shuts off. A faulty check valve causes the pump to cycle repeatedly, wearing it out faster. Test it by listening for a slight thud when the pump stops. If you hear water gurgling back, the valve may need replacement.

While you can handle most maintenance yourself, an annual professional check can catch issues you might miss. A water damage pro can inspect the pump's motor, test the float switch, verify the discharge line's slope, and ensure the pit is sized correctly. They can also confirm that the pump's capacity matches your home's water flow needs.

If you notice unusual noises, frequent cycling, or water not draining, call a local pro before the next storm. Where wet winters bring heavy rain, a well-maintained pump is your first defense against basement flooding. If water does get in despite your efforts, a water damage inspection can help you assess the damage and plan cleanup.

• Annual check of the pump motor and float switch.
• Verify the discharge line has no leaks or blockages.
• Confirm the check valve operates correctly.
• Test the battery backup and replace if needed.
• Check the pit for cracks or shifting.
• Ensure the pump is properly grounded and connected.