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Wells & Pumps

Is it time to replace your sump pump?

Quick answer

Most sump pumps last about 7 to 10 years. Replace yours if it's in that range, runs constantly or not at all, makes grinding or rattling noises, cycles on and off rapidly, shows rust, or has failed a test. Test it before storm season by pouring a bucket of water into the pit.

A sump pump installed in a basement pit

A sump pump is a vital component of your crawl space or basement waterproofing system and actively prevents flooding. When water enters one of these areas, the sump pump draws it away from the foundation and propels it outside the home. A sump pump is critical in maintaining the health of your crawl space or basement, and when it comes time to replace it, there are several signs to look out for, as shown below. On average, sump pumps can last about 10 years.

  1. The sump pump runs for a long time or runs continuously: Both of these signs could mean that the sump pump is no longer able to process the amount of water it is being forced to expel. If the sump pump takes a long time to clear a standard amount of water, or it continues to run even when no water is present, it is right to call an experienced plumber to investigate the issue.
  2. The sump pump makes strange noises: If your sump pump is making grinding, rattling, or any other excessively loud noises when the motor is on, it may have a failing part which needs to be replaced. In some cases, a new unit might be the right investment.
  3. The sump pump is old or showing signs of age: Sump pumps that are 7 years old or older are ready to be replaced, especially if the motor fails or they are showing signs of rust.

Sump pumps are a vital component of your home’s plumbing system and when they fail, it can result in serious water damage to your basement or crawl space.

More tips from our team

  • Maintenance signs: odd noises, vibration, visible rust and a float that sticks all mean the pump needs attention now, not after the storm.

Frequently asked questions

How do I test my sump pump? +

Pour a bucket or two of water into the pit. The float should rise, the pump should turn on and empty the pit, then shut off.

Why does my sump pump run constantly? +

A stuck float switch, a failed check valve, a pump that's too small, or a high water table can all cause it.

Should I add a battery backup? +

If your basement has ever flooded, yes. Storms that bring heavy rain often knock out power too.

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