When Constant Running Is Normal
In Erie, the ground around a basement can stay saturated for days during the spring thaw, after lake-effect snow melts, or after a long, heavy rain. During those periods, water keeps flowing into the pit from the drain tile and the soil, and a pump that cycles every few minutes is working as designed.
It is a warning sign when:
- The pump runs after a week of dry weather.
- It runs even though the pit is nearly empty.
- It turns on and off every few seconds.
- It never shuts off at all.
- It hums or gets hot but water does not go down.
Quick Checks You Can Do Yourself
Unplug the pump or switch off its circuit before reaching into the pit.
- Look in the pit. Is water actually flowing in? If the pit is filling fast, the pump is keeping up with real water. If it is nearly dry and the pump still runs, the switch or the pump is the problem.
- Check the float switch. Floats get stuck against the side of the pit, on the pump body or on the power cord. A stuck float keeps the pump running with nothing to pump.
- Watch the end of a cycle. When the pump shuts off, listen for water rushing back down the pipe into the pit. That points to a missing or failed check valve, which makes the pump move the same water over and over.
- Follow the discharge line outside. If it empties right next to the house, the water soaks back down to the foundation and returns to the pit. In winter, also check that the line is not frozen or blocked.
- Check your water meter in dry weather. Turn off every faucet and appliance and watch the meter. If it still moves and clean water keeps flowing into the pit, a leaking water line underground may be feeding it. Call a plumber for that one.
Common Causes and What Fixes Them
- Stuck or failed float switch: free the float or replace the switch. Vertical floats snag less often than tethered ones in narrow pits.
- Failed check valve: replace the valve on the discharge pipe. It is an inexpensive part.
- Water recirculating: extend the discharge line so it releases water well away from the house and downhill.
- Pump too small: if the pit fills faster than the pump empties it during wet weeks, a higher capacity pump may be needed.
- Pit too small: a small pit fills in seconds, causing short cycling that wears out the motor. A larger pit gives the pump longer, less frequent cycles.
- High water table: some homes simply sit in wet ground. The pump will run often in spring, which makes pump quality and a backup more important.
Why It Should Not Be Ignored
Every start and stop wears the motor and the switch. A pump that runs constantly will fail sooner, and pumps tend to fail during the same storms that send the most water into the pit. If your pump is older, struggling, or has run nonstop for days without a clear reason, it is worth having it checked before the next big thaw.
A battery backup pump is a good safety net in any basement that depends on a sump pump. It takes over if the main pump fails or the power goes out.
When to Call a Contractor
- The pump runs nonstop and you cannot find the cause.
- The motor hums, overheats or trips the breaker.
- Water is rising in the pit faster than the pump can remove it.
- You want a backup installed before the next wet season.
Learn more about sump pump installation and repair in Erie. If water is also coming in around the walls or floor, see basement leak repair.