Maintenance Guides / Plumbing & Water

Service well pump check valve

Difficulty: moderateTime: 20 mins

Why it matters

Failed check valve causes pump short-cycling and premature failure.

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How to do it

  • 1

    Locate check valve on discharge line above pump.

  • 2

    Inspect for leaks or corrosion.

  • 3

    Listen to pump during operation/shutdown.

  • 4

    Note water hammer sounds (indicates failure).

  • 5

    Check pressure gauge for normal operation.

  • 6

    Call service if short-cycling.