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8 Sump Pump Problems and How To Fix Them

a failing sump pump in need of repair.

Sump pumps are essential devices in many homes, particularly in areas prone to heavy rainfall or flooding. They help prevent water damage and keep your basement dry and safe. However, like any mechanical device, sump pumps can encounter problems. Understanding these common issues and their solutions can help you troubleshoot and fix them promptly, ensuring your sump pump continues to work efficiently. Here we will discuss eight common sump pump problems and provide step-by-step instructions on how to fix them.

1. Pump Not Activating

One of the most frustrating problems you may encounter with your sump pump is when it fails to activate. There are several potential causes for this issue:

  • Check the power source: Ensure that the sump pump is connected to a working electrical outlet and that the circuit breaker has not tripped.
  • Float switch malfunction: Inspect the float switch for any debris or obstructions. Clean or replace it if necessary.
  • Faulty check valve: A malfunctioning check valve can prevent the sump pump from activating. Inspect the valve for any clogs or damage and replace it if needed.

By addressing these potential causes, you can typically resolve the issue of the pump not activating.

2. Continuous Running

If your sump pump keeps running constantly, it may be a sign of an underlying problem. Here are some troubleshooting steps to follow:

  • Check the float switch: Ensure that the float switch is not stuck in the “on” position. Clean any debris or obstructions that may be preventing it from functioning properly.
  • Examine the check valve: Verify that the check valve is installed correctly and is not damaged. Faulty check valves can cause water to flow back into the pit, triggering the pump to run non-stop.
  • Inspect the discharge pipe: Ensure that the discharge pipe is not clogged or frozen. Clear any obstructions or consider insulating the pipe in colder climates.

Addressing these issues can help resolve the problem of your sump pump running continuously.

3. Insufficient Pumping

If you notice that your sump pump is no longer pumping out water as effectively as before, it may be due to the following reasons:

  • Check for clogged intake screens: Clean any debris or dirt from the intake screens to ensure water can flow freely into the pump.
  • Inspect the impeller: The impeller may become jammed or worn out over time. Remove any obstructions or consider replacing the impeller if necessary.
  • Check the discharge pipe diameter: Ensure that the diameter of the discharge pipe matches the pump’s specifications. Using an undersized pipe can restrict water flow and reduce pumping efficiency.

By addressing these potential causes, you can improve the pumping efficiency of your sump pump.

a sump pump in need of repair.

Ensure that the float switch is positioned correctly, allowing for adequate water levels to trigger the pump.

4. Noisy Operation

A sump pump that operates loudly can be disruptive and indicate an underlying problem. Here are some steps to help reduce excessive noise:

  • Tighten loose parts: Check all connections and fasteners to ensure they are tightened properly. Loose components can cause vibrations and noise during operation.
  • Inspect the impeller: A damaged or loose impeller can create excessive noise. Inspect the impeller for any signs of damage or wear and replace if necessary.
  • Consider noise insulation: Installing noise insulation around the sump pump or placing it on a vibration-dampening pad can help reduce noise levels.

Following these steps can help mitigate the noise produced by your sump pump and identify any potential issues.

5. Short Cycling

Short cycling refers to the constant starting and stopping of the sump pump within a short period. Here are some possible causes of short cycling:

  • Improper float switch placement: Ensure that the float switch is positioned correctly, allowing for adequate water levels to trigger the pump. Adjust or reposition the switch if necessary.
  • Inspect the check valve: A malfunctioning or improperly installed check valve can cause water to flow back into the sump pit, leading to short cycling. Verify that the valve is working correctly and replace if needed.
  • Check for a high water table: If the water table in your area is high, it may cause frequent pump activation. Consider installing a larger capacity pump to handle the volume of water more efficiently.

Addressing these potential causes can help resolve the issue of short cycling and needing your sump pump replaced.

6. Overwhelmed by High Volume of Water

In situations where heavy rainfall or flooding occurs, your sump pump may struggle to handle the increased water volume. Here’s what you can do:

  • Consider a battery backup sump pump: Installing a battery backup sump pump system can provide additional pumping capacity during periods of high water volume, ensuring your basement stays dry.
  • Inspect the primary pump’s capacity: If your current sump pump is continuously overwhelmed, consider upgrading to a larger capacity pump to handle heavier water influxes more effectively.
  • Ensure proper discharge outlet: Check that the sump pump’s discharge outlet is directing water away from your home’s foundation to prevent any potential flooding.

By implementing these measures, you can better prepare your sump pump to handle high volumes of water and safeguard your basement.

7. Unpleasant Odors

If you notice foul odors emanating from your sump pump, it can be an indication of bacteria or mold growth. Follow these steps to address the issue:

  • Clean the sump pit: Remove any water and debris from the sump pit and clean it thoroughly. Scrub the walls with a mixture of bleach and water to kill bacteria and mold.
  • Inspect and clean the discharge pipe: Check for any clogs or buildup in the discharge pipe that may be causing the odor. Clean the pipe using a suitable cleaning solution or a plumbing snake.
  • Install a deodorizing tablet: Placing a deodorizing tablet or sump pump treatment product in the sump pit can help eliminate odors and prevent bacterial growth.

Following these steps will help alleviate any unpleasant odors associated with your sump pump.

a man handling sump pump maintenance.

If your current sump pump is continuously overwhelmed, consider upgrading to a larger capacity pump to handle heavier water influxes more effectively.

8. Power Outage

During a power outage, your sump pump is rendered ineffective, leaving your basement vulnerable to flooding. To mitigate the risk, consider the following options:

  • Invest in a generator: Having a generator as a backup power source can ensure continuous electricity supply to your sump pump and other essential home appliances during extended outages.

By having a backup power solution in place, you can safeguard your basement even in the event of a power outage.

In Conclusion

Sump pump problems can be a significant inconvenience, but with the right knowledge and troubleshooting steps, many issues can be resolved without professional assistance. By following the guidelines provided in this article, you can identify and fix common sump pump problems, ensuring the longevity and effectiveness of your sump pump system. Remember, regular maintenance and inspection play a crucial role in preventing problems before they occur. If you encounter complex issues or are unsure about any repairs, always contact a qualified plumber for assistance.