not enough pressure in all zones

Discussion in 'Irrigation / Sprinkler Forum' started by, May 9, 2011.

  1. New Member

    May 9, 2011
    We just turned on our system this spring. Everything thing starts up o.k but we have noticed a lack in water pressure compared to previous years. Any clue what this would be?
  2. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    Could be any of several things, but we would have to be there to make the necessary tests.
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  4. Gary Swart

    Gary Swart In the Trades

    Sep 1, 2004
    Yakima WA
    Just a couple of shots in the dark. Could be a main valve is not opened completely. Could be a leak in the line coming to the manifold. Maybe a defective backflow preventer.
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