Pump to sprinkler mystery.

Discussion in 'Pumps and Tanks Well Forum & Blog' started by tsingh, Apr 8, 2014.

  1. tsingh

    tsingh New Member

    Mar 30, 2013

    In the process of troubleshooting a pump that can't maintain prime, a new situation came up.

    Typically, I would test the pump by running an outdoor faucet (at the end of a white pipe similar to the pipe at the outlet of the pressure tank). When I run this faucet (even moderately), the pressure in the pump pressure gauge starts dropping and the pump kicks in at the cut in point.

    The sprinkler system is supposed to be attached to the pump, but when I run the sprinkler no pressure drop is noticed at the pump. What's the best way to validate if the sprinkler is attached to be pump and if it is, then why is there no pressure change in the pump?

    I am putting all this effort to fix this pump, in the hopes that my sprinkler would run off of it, so if something is wrong with the pump to sprinkler connection, that fundamentally changes a lot.

  2. valveman

    valveman Moderator Staff Member

    Mar 15, 2006
    Pump Controls Technician
    Lubbock, Texas
    If you have pressure at the pump but no water coming out the sprinklers, you have a restriction or closed valve between the pump and sprinkler.
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