/Hurricane-Consequences

Troubleshooting Sump Pump Performance After a Storm

Struggling with an overwhelmed sump pump? Discover quick fixes and common causes to keep your system running smoothly.

Reviewed by Content Team

Head of Content, D. Gorenko

Updated June, 5

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How to Fix Overwhelmed sump pump

 
Immediate Steps to Take
 

  • Turn off the power supply to the sump pump to avoid any electrical hazards.
  • Remove any debris from the pit surrounding the pump, ensuring there are no obstructions that may be causing the pump to work overtime.
  • Check the float switch to ensure it moves freely and isn’t stuck by dirt or damage.
  • Inspect the discharge pipe for clogs, ice, or blockage that might restrict water flow.
  • If water is continually backing up, consider using a temporary container to divert water until a lasting solution is found.

 
Tools and Materials Needed
 

  • Screwdriver set (both flathead and Phillips)
  • Pliers and adjustable wrenches
  • A flashlight for inspecting the sump pit and pump components
  • Bucket and cleaning tools (such as a brush)
  • A shop vacuum or wet/dry vacuum (if water cleanup is necessary)
  • Replacement parts if any damage is found (float switch, check valve, etc.)
  • Work gloves and protective eyewear for safety

 
Self-Repair vs. Calling a Professional
 

  • If you have basic plumbing skills and a good understanding of the pump's operation, you might fix minor issues like cleaning debris, adjusting the float, or unclogging the discharge line on your own.
  • However, if the pump is frequently overwhelmed or shows signs of motor failure or serious clogging, it is advisable to call a professional for a comprehensive assessment.

 
Who to Call
 

  • For a pump and plumbing issue, a plumber experienced in sump pump systems is ideal.
  • If there appears to be an electrical fault with the motor or switch, an electrician should be consulted.

 
Safety Warnings and Insurance Tips
 

  • Always disconnect power to the pump before performing any repairs to minimize the risk of electric shock.
  • Wear protective gear such as gloves and safety glasses when cleaning or handling parts.
  • If the pump is part of a major water intrusion or if damage is significant, check with your homeowner’s insurance to see if repairs or replacement might be covered.
  • Be aware of any local codes and permitting requirements before undertaking major repair work.

 
Additional Considerations
 

  • Regularly maintain your sump pump to prevent overwhelming — schedule inspections and cleanings, especially before the rainy season.
  • Consider installing a battery backup system in case of power outages, ensuring the pump continues to operate during emergency situations.
  • If your home is located in St. Louis or Nashville, local contractors are familiar with the challenge of heavy rainfall and water table issues common in these regions, so a local pro might offer the best solution with region-specific expertise.

What Could be Causing Overwhelmed sump pump

 

Potential Environmental Causes

 
  • Excessive Rainfall: Heavy downpours can overwhelm the sump pump by forcing too much water into the sump pit in a short time.
  • High Water Table: When the ground is saturated from prolonged wet conditions, the natural drainage is less effective, causing an increased load on the sump pump.
  • Flooding: Events such as street flooding or nearby water bodies overflowing rapidly push extra water into the sump pit.

 

Structural and Installation Challenges

 
  • Improper Pump Sizing: A pump that isn’t sized correctly for the volume it needs to handle might become overwhelmed during periods of heavy water influx.
  • Faulty Installation: Incorrect positioning of the sump basin or a poor connection with the drainage system can result in an excessive amount of water making its way into the pump chamber.

 

Maintenance and Mechanical Issues

 
  • Debris and Sediment Accumulation: Dirt, debris, or even organic material like leaves can build up in the sump pit. This debris interferes with the pump’s normal operation, reducing its efficiency.
  • Mechanical Wear and Age: Over time, sump pumps may suffer from worn-out parts or motor fatigue, making them less effective at handling water volumes.
  • Clogged Discharge Lines: If the outlet pathway is obstructed, water can back up into the sump pit, causing the pump to work harder than it’s designed for.

 

Additional Considerations

 
  • Power Interruptions: During storms, power outages might occur, leaving the sump pump inoperable just when it is most needed. Backup power systems may help, but without them, the pump is overwhelmed.
  • Excessive Groundwater Inflow: Areas with poor drainage or inadequate grading around the foundation may direct more water into the sump pit than the pump is capable of removing.

Within regions such as St. Louis and Nashville, these factors can combine to challenge even robust sump pump systems.

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