Maintenance Guides / Plumbing & Water

Inspect ejector pump

Difficulty: moderateTime: 30 minsEst. Cost: $100 - $400

Why it matters

Below-grade bathrooms rely on ejector pumps to push sewage uphill. A failed pump means raw sewage backs up into the basement.

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How to do it

  • 1

    Locate the ejector pump pit (usually in basement near toilet).

  • 2

    Remove the pit cover and inspect the float switch.

  • 3

    Pour water into the pit to trigger the pump.

  • 4

    Listen for the pump motor to start and discharge to drain.

  • 5

    If pump doesn't start or discharges weakly, it needs service.

  • 6

    Clean the pit intake screen and check for clogs.