Why it matters in the Pacific Northwest
Wet fall and winter weather raises groundwater around foundations, and that is when a sump pump has to work. A pump that has sat idle all summer can fail the first time it is needed, so testing it before the rains is far easier than dealing with a flooded basement or crawl space.
Pre-season sump pump checklist
- Unplug the pump and look for debris, dirt or gravel in the basin; remove it and plug the pump back in.
- Pour a few gallons of water slowly into the basin.
- Watch the float rise and confirm the pump turns on, empties the basin and shuts off.
- Check that the discharge pipe is clear and carries water well away from the foundation, and that its outlet is not blocked or frozen.
- Check that the pump is plugged into a working outlet, ideally a GFCI outlet, and that nothing is stored in the way of the float.
- Test any battery backup according to its instructions.
Signs a sump pump is failing
- It does not start when the basin fills
- It runs constantly or cycles on and off frequently
- Rattling, grinding or other unusual noise
- Visible rust or corrosion
- Water in the basement or crawl space
Backup options
Storms that raise groundwater can also cut power. A battery backup or water-powered backup keeps the basin pumping through an outage, which matters most for finished basements and stored belongings. A plumber can explain which option suits your pump and basin.
When to call a plumber
Call if the pump fails the test, runs constantly, makes unusual noise or is several years old and showing wear. Sump pump installation and repair is available 24/7 for emergencies.
Frequently Asked Questions
How often should I test my sump pump?
Before the rainy season starts is a good minimum, and again during wet periods if you rely on it heavily. Testing takes a few minutes with a bucket of water.
Can sump pump water go into the sewer?
Usually not. Discharge generally needs to go outdoors away from the foundation, and discharging to a sanitary sewer is commonly prohibited. Check local requirements or ask a plumber.
What if the pump runs but the basement still floods?
The pump may be undersized, the discharge line may be blocked, or the water may be coming from a plumbing leak rather than groundwater. A plumber can check the pump and the source.
Related Services
- Sump Pump Installation & Repair
Sump pump installation, repair and replacement to help keep basements and crawl spaces from flooding.
- Main Water Line Leak Detection & Repair
Locating and repairing leaks in the main water line that runs from the street or meter to your building.