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How Do I Maintain My Sump Pump?

Last updated October 25, 2026

The short answer

Test Your Pump Monthly

A quick monthly test catches problems early. Pour a bucket of water into the sump pit until the float rises and the pump turns on. Watch the pump cycle on and off a few times. If it does not start or runs continuously, something is wrong.

Also listen for unusual noises like grinding or rattling. Those sounds often mean debris is stuck in the impeller. Unplug the pump before inspecting it. Remove any visible debris from the inlet screen. A clean pump lasts longer and works better.

Clean the Inlet Screen and Float

The inlet screen blocks solids from entering the pump. Over time, sludge and grit build up and reduce water flow. Lift the pump out of the pit, rinse the screen with a hose, and clear any blockages. Do this every few months, more often if you have a high water table.

The float switch controls when the pump turns on and off. A stuck float can leave your crawl space or utility room flooded. Check that the float moves freely along its rod or cord. Wipe off any film or grime. If the float sticks, adjust its position or replace it.

  • Unplug the pump before any cleaning
  • Use a stiff brush for stubborn buildup
  • Inspect the power cord for cracks
  • Check the discharge pipe for kinks
  • Test the check valve by listening for water backflow

Inspect the Discharge Line

The discharge line carries pumped water away from your home. If it is clogged or frozen, water backs up into the pit and the pump runs longer. Look for kinks, cracks, or loose connections. Clear any debris from the outlet end.

Make sure the discharge line slopes away from the foundation. Water that pools near your home can seep into the crawl space. Heavy spring storms can overwhelm a poorly routed line. Check the line before the rainy season.

Check the Power and Wiring

A sump pump needs a reliable power source. Check that the outlet is grounded and the circuit breaker is not tripped. Test the ground fault circuit interrupter, if you have one, by pressing the test button. This prevents electrical shock.

Inspect the power cord for fraying or exposed wires. Never touch a wet pump while it is plugged in. If you notice electrical issues, stop using the pump and call an electrician. Electrical problems are not a do-it-yourself project.

Schedule an Annual Checkup

A professional inspection catches wear that you might miss. The pros can test the pump's performance, check the float switch, and inspect the check valve. They can also clean the pit thoroughly and remove any accumulated sludge.

Annual maintenance helps avoid an emergency. If your pump fails during a storm, you could face a flooded utility room. The pros can also recommend a backup pump or battery system. That service usually involves a cost that depends on the pump's condition and the work needed.

Talk to someone now

Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.

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Frequently asked questions

How often should I clean my sump pump?

Clean the inlet screen and float every two to three months. If you have frequent storms or a high water table, clean it monthly. A yearly professional inspection is also wise. Regular cleaning prevents clogs and keeps the pump running smoothly.

What should I do if my sump pump runs constantly?

A constantly running pump often means the float switch is stuck or the water inflow is too high. Check the float for debris. Also check the discharge line for a clog. If the problem continues, turn off the pump and call the pros for a diagnosis.

Can I replace the sump pump myself?

You can replace a sump pump if you are comfortable with basic plumbing and electrical work. Always unplug the pump and follow the manufacturer's instructions. If you are unsure about any step, hire a plumber or the pros. Safety matters more than saving time.

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