How to Unclog a Sump Pump


Sump pumps usually clog under the pump at the impeller, which is a fan-like piece that vacuums water vertically up and out of the pipe. Simple removal of the obstruction should fix the problem. Sometimes the pump might be the problem and a new one might need to be purchased. In either case, you fix the problem without outside assistance.

Things You'll Need

  • Screwdriver
  • Flood pumper
  • Hand saw
  • No-Hub Clamp
  • Bucket or hose
  • Disconnect all power, which can be a plug next to the pump or pit. Power can also be coming from an electrical panel. In this case, follow the electrical line to the electrical control panel and disconnect. You must be sure that all power is off.

  • Uncover the pit if it has a cover. If the pit is full of water, use a flood pumper to empty the pit.

  • Unscrew and remove the clamp, if it has one, under the check valve. The check valve is part of the piping system above the pump. If the pipe between the check valve and the pump doesn't have a clamp, cut the pipe with a hand saw under the check valve to remove the pump from the pit.

  • Turn the pump upside down and check the impeller for obstruction.

  • Remove the obstruction and turn the pump right side up. Be extra cautious to not touch any cables with wet hands.

  • Turn on the power while the pump is outside of the pit. If the pump works, put everything back. If the pump doesn't work, disconnect the power again and purchase a new pump.

  • Tie the pipe back with the original clamp after it has been determined that the pump is working. If the pipe is cut, use a no-hub clamp according to the size of the pipe to tie the pipe back.

  • Make sure the pit is clean and turn the power on.

  • Fill the pit with water with a bucket or a hose to see if the floater triggers the pump. If the floater doesn't trigger the pump, purchase a new pump.

Tips & Warnings

  • it might be necessary to use a 5/16-nut driver to tighten the clamps.

Related Searches


  • Ioannis Panagiotou; Plumber; New Jersey
Promoted By Zergnet


You May Also Like

  • Sump Pump Versus Sewage Pump

    Sump pumps and sewage pumps are two different types of septic systems. A sump pump is used in residential or commercial properties...

  • How to Replace a Sump Pump

    Putting in a sump pump is really no harder than changing a spark plug. You are simply replacing one part for another....

  • How to Understand Your Sump Pump

    Do you have a sump pump? Do you not really understand it? It's not an alien from outer space. We can help...

  • How to Install a Sump Pump

    How to Install a Sump Pump. If water getting into your basement is an ongoing issue, a sump pump may be the...

  • How to Extend the Drain Pipe on the Sump Pump

    Your sump pump's drain or outflow pipe is the pipe that runs from where your pump rests to the outside of your...

  • The Sump Pump Won't Pump

    A failing sump pump can cause flooding and water damage if not found soon enough. Unfortunately, the first sign of the problem...

Related Searches

Check It Out

22 DIY Ways to Update Your Home on a Small Budget

Is DIY in your DNA? Become part of our maker community.
Submit Your Work!