How Sump Systems Actually Fail
The pump motor is rarely the first thing to go. Far more often it is the float switch sticking, the check valve failing so water cycles back into the pit, the discharge line blocked or frozen at the outlet, silt accumulating until the pit no longer holds usable volume, or simply no power during the storm that caused the demand.
This is why swapping the pump is not the same as fixing the system. We test the pump, the float, the check valve, the discharge route, and the pit condition as one set, because a new pump connected to a blocked discharge line is a new pump that does not work.
- Float switch sticking or obstructed in the pit
- Check valve failed, letting water return
- Discharge line blocked, frozen, or discharging too close to the foundation
- Silt and debris reducing usable pit volume
- No power, and no backup, during the storm