A Knightdale sump pump that isn't keeping the pit down usually has a jammed float, a bad check valve, a power problem or a worn motor. Knightdale's homes are mostly newer, so the pump is often the original builder-installed unit and has never had service. Call the number on this page to be connected with a local plumber in Knightdale.
Local conditions in Knightdale
Knightdale pairs a small railroad-era downtown with a lot of new construction. The median home was built in 2008, about 74% went up after 2000 and only about 6% predate 1980, according to Census survey data. In newer subdivisions a pump is usually there because a particular lot drains toward the house, and the pump that came with the house may be close to its first replacement.
Water and sewer in Knightdale belong to the City of Raleigh, which owns and runs all public water and sewer utilities in town. Sump water is groundwater and shouldn't go into a house drain connected to that system; it should exit to the yard.
Raleigh Water's cross-connection program covers Knightdale. Most homes have a non-testable dual check device in the meter box, and testable assemblies follow the city's testing schedule. A water-powered backup pump ties into the drinking water line, so ask the plumber what backflow protection it needs.
Homes outside town lines may be on private wells. On a well, a water-powered backup has nothing to run on when the power goes out.
Pump styles at a glance
| Type | Where the motor sits | Trade-offs |
|---|---|---|
| Submersible | Down in the pit, under water | Quieter and out of the way; harder to reach for service |
| Pedestal | On a column above the pit | Easier to service and often long-lived; louder and takes more room |
| Combination with battery backup | Main pump plus a second battery pump | Covers outages for a while; battery needs replacing over time |
Signs to watch
- The pit fills and nothing happens
- Short bursts of running
- Water rushing back after shutoff
- Damp ground or puddles under the house after storms
- Grinding or rattling noises
Timing
Run a test in spring and again before late-summer storm season. Builder-installed pumps that sit idle through dry months are the ones most likely to stick. After a hard rain, check that the outdoor outlet is clear and draining away from the foundation. If the pump has been running for days straight after a long wet spell, have it checked before the motor overheats, and replace a backup battery that is more than a few years old.
Sump Pumps questions in Knightdale
Will a water-powered backup pump work if the house is on a private well?
How do I keep water out of the pit when the power goes out?
Is it okay to send sump water into a floor drain or sewer cleanout?
The pump keeps cycling even in dry weather. What's going on?
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