Warning signs
- The motor hums but the water level in the pit does not drop
- Nonstop running during a dry spell
- Short, rapid on-off cycling
- Grinding or rattling during operation
- Water standing in the pit above the normal level
Why pumps fail here
Scarborough has seen damaging summer storms, and many homes in lower-lying pockets rely on a sump to keep groundwater from the foundation. Floats get stuck on the pit wall, check valves wear out and let water fall back, and impellers clog with silt. Pumps also simply age, often after seven to ten years.
Spring test: Tip in a pail of water gradually. A healthy pump kicks in, clears the pit and stops on its own.
How a repair goes
- The pump is unplugged and the pit is inspected.
- Float movement, switch, check valve and discharge line are tested.
- Silt and debris are removed from the pit and the intake.
- Faulty parts are replaced, or the pump is swapped if the motor is failing.
- The system is tested with water and the discharge outlet outside is checked.
What affects the price
A stuck float is a quick fix. A failed motor, a broken check valve, or a frozen discharge line in winter takes more. Adding a battery backup or alarm is an option many owners choose.
When to call
Call immediately if water is rising in the pit during rain. For a new system, see sump pump installation.