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Thread: Shuttering sound at water main?

  1. #1

    Default Shuttering sound at water main?

    We just purchased a house with a Toro-based system. I went through the reactivation sequence provided to me (via Flier's in Grand Rapids, MI) and when the zones initially will start-up (one-by-one), I hear a loud shuttering sound at the main.

    What might cause this?

  2. #2
    In the Trades Gary Swart's Avatar
    Join Date
    Sep 2004
    Yakima WA


    May be air being expelled from the pipe in the drained zone?


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