540-595-9896
<< View All Posts

Fix Your Clogged Sump Pump: Essential Maintenance Tips

Read time: 5 min.

A flooded basement is a homeowner’s worst nightmare. A clogged sump pump is often the culprit. This comprehensive guide tackles everything about a clogged sump pump, from identifying the signs to fixing the problem and preventing future clogs. Regular sump pump maintenance will save you headaches (and money) down the road.

Understanding Your Sump Pump System

Your sump pump system is crucial for keeping your basement dry. It consists of a sump pit, the pump itself, a float switch, and the discharge pipes. Water collects in the sump pit.

When the water reaches a certain level, the float switch activates the pump. The pump pushes the water out through the sump pump discharge, away from your foundation.

Signs of a Clogged Sump Pump

Several warning signs indicate a clogged sump pump. These range from unusual noises to obvious water backups. Recognizing these signs early can prevent a basement flood.

Strange Noises

Listen for gurgling, grinding, clicking, or rattling sounds from your sump pump. These sounds might indicate a struggling motor or impeller (the spinning part that pushes water). This is often due to a clog or a failing pump motor.

Water Pooling

Check around your sump pit for water pooling. Pooling near the pit indicates a drainage issue. The pump cannot expel the collected pump water.

Bad Smell

Stagnant sump pump water can cause mildew and bacteria growth. This creates a foul odor. If your basement has a musty or sewage-like smell, suspect your sump pump.

It is important to perform regular maintenance to keep your sump pump working properly. Also be sure to inspect for other sources like blocked plumbing.

Continuous Running or Frequent Cycling

If your sump pump runs constantly, the discharge pipe is probably clogged. You have restricted flow to remove the standing water. Your float switch may not be disengaging, which warrants attention.

Frequent on-off cycles suggest the system is struggling to keep up with the water level. If the water level lowers and your pump is still running, you might have a problem with your sump pump float or other issues with your pump.

Common Causes of a Clogged Sump Pump

Debris like dirt, leaves, and small stones commonly clog sump pumps. Even with a sump pit cover, sediment can enter your sump pump, especially during snow melts and heavy rainfall.

  • Debris: Dirt, leaves, and other debris can accumulate in the discharge line outdoors, causing blockages.
  • Frozen sump pump line: In colder climates, discharge lines may freeze in winter. The frozen water blocks the sump pump.

When debris clogs your sump pump drain, you’ll want to get it addressed as soon as possible. Standing water in the sump pit turn into costly damage.

How to Unclog a Sump Pump

First, remember safety. Always turn off the power to your sump pump before working on it to avoid electric shock. Ensure you’re only using grounded or double-insulated tools. Do not use a sump pump that has exposed wiring or has electrical tape holding it together.

  1. Remove the Sump Pump: Unplug the pump and disconnect the discharge lines. Lift the pump out of the pit, placing it in a bucket.
  2. Clear Discharge Lines: Inspect and clean the discharge lines. A sewer jetter is often best to flush deep debris but avoid damaging the lines. A plumber’s snake can also dislodge clogs.
  3. Remove Sediment: Clear any dirt, sand, or gravel from the sump pit. Be sure to inspect the check valve which might also contain sediment.
  4. Elevate the Pump: Placing the pump on bricks reduces sediment intake. This can also help to remove the pump quicker in case there are any problems down the line.
  5. Inspect the pump: Ensure it’s working correctly. Check to ensure all electrical is securely in place. Sometimes rodents like to chew wires and these are common signs of failure that people easily overlook. Be sure there is not excessive standing water that remains in your pit. You want the pit as empty as possible.

If you’re having trouble performing sump pump repair on your own, it might be worth calling a local plumber.

Preventing Future Clogs

Regular maintenance prevents a clogged sump pump. Cleaning the sump pit seasonally, installing a sump pump cover, and ensuring proper sump pump installation and drain water flow help. Annual professional inspections provide great preventive maintenance.

To help drain water properly from your pump, you’ll want to make sure the pipe underground is free of any rocks, gravel, sand, roots, or other forms of blockages.

When performing sump pump maintenance or pump maintenance, you’ll also want to inspect where the pipe connected from your sump pump brings the water to the street, or anywhere the water drains outside of your home. It is critical that debris build up is removed during your regular sump pump maintenance.

FAQs about clogged sump pump

How do you clear a sump pump blockage?

Clearing a sump pump blockage involves several steps. First, disconnect power to the pump. Remove the pump from the pit and clean it, including the intake screen and float switch.

Clear debris from entry and exit points. Use hot water and a sewer snake or similar tool to remove buildup inside the drainage pipe.

How do I know if my sump pump line is clogged?

Several indicators reveal a clogged sump pump line. Listen for unusual noises like gurgling or grinding. Check for standing water around the sump pit, even without recent rain.

A foul odor near the pump might indicate stagnant water due to a clog. Be sure to keep track of these signs during the rainy seasons or when snow starts melting, and before it makes its way into the ground water, because this will overwhelm your sump pump and you’ll want to ensure the pump discharge pipe water is free-flowing and all the water from your pump drains freely.

What clogs a sump pump?

Various materials, primarily debris, clog sump pumps. Dirt, sand, gravel, and small stones often enter the system. This happens especially during heavy rain or melting snow.

Less common culprits include small toys, pet hair, or even fabric. Sometimes, even with a cover, during heavy rain fall, roots and sticks, small rocks can still make their way into your sump pit, and then prevent water from being removed because it’s being sucked into the pump. Sometimes if that’s left unchecked, there could be other sump pump problems or sump pump failure that occurs when these clogs block water and the water has nowhere to go, causing major headaches and foundation issues to occur in homes.

How much does it cost to unclog a sump pump?

Unclogging a sump pump costs between $125 and $350, depending on location and severity. DIY fixes, using a sewer snake, are cheapest. A plumber’s visit for snaking might cost $150 to $300. Keep in mind that these numbers vary, especially during busy plumbing seasons.

Conclusion

Dealing with a clogged sump pump is a common homeowner challenge. However, knowing how to clear blockages, repair, and prevent problems makes it manageable. From detecting warning signs to regular sump pump maintenance, prompt action keeps your home flood-free.

Table Of Contents

© 2025 
Star City Crawl Space