The situation
A home sits below the street on a hillside lot, and its lower-level bathroom and laundry drain to a sealed ejector basin in the garage floor. Late one evening, an alarm panel on the garage wall starts beeping and its red light comes on.
The owners have never heard it before and are not sure what it means.
What they did right away
- Stop the water.They stop the washer and ask everyone not to flush or shower on the lower level, or anywhere that drains to the basin.
- Leave the lid alone.They do not open the basin.
- Check the breaker.They find the pump's breaker tripped. Following advice not to keep resetting a tripped pump circuit, they leave it off after one try trips it again.
- Call.They call a licensed plumber and keep water use to a minimum overnight.
What the plumber found in this example
| Check | Finding |
|---|---|
| Basin level | High, near the alarm float |
| Pump | Jammed by wipes wrapped around the impeller |
| Motor | Overheated from running against the jam |
| Check valve | Working |
| Alarm | Worked as designed |
Clear the jam or replace the pump
Clear and test
- Possible if the motor recovers
- Lower immediate cost
- Risk of early failure after overheating
Replace
- Fresh motor and switch
- Chance to confirm sizing for the fixtures
- Ask whether a permit applies; check with the City of Fullerton
Outcome
In this invented case, the motor does not run reliably after the jam is cleared, so the pump is replaced. The owners post a note in the lower bathroom: toilet paper only, no wipes. They also add an alarm test to their maintenance calendar.
If your alarm sounds
Common questions
Is this a real customer?
No. It is an invented example.
Are flushable wipes safe for ejector pumps?
Wipes are a common cause of jams. Toilet paper only is the safer rule.
Do all below-street homes have ejector pumps?
No. Many drain by gravity to a sewer behind or below the property.
General information for Coyote Hills, not a quote or professional advice. In an emergency, call 911.