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Thread: Jandy 3 way valve operation

  1. Back To Top    #1

    Join Date
    Jul 2015
    Oklahoma City, OK

    Jandy 3 way valve operation

    My pool equipment is higher than the pool with a self priming pump. There is a Jandy 3 way valve in the supply to the filter and waste. The inlet feeds the waste and the flow thru feeds the filter.

    My problem is I can't get the pump to prime even after several minutes of running. I just want to make sure of correct handle position on the valve.

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Jandy 3 way valve operation


    If the valve is between the pump and the filter, it should have no effect on priming, as it's on the pressure (outlet) side.

    What you need to look for is a suction-side air leak. The most common ones are low water level, stuck skimmer flap, and shrunken, cracked, or dry pump lid O-ring. Lesser leaks are found in pump drain plugs, threaded connections, and leaking valves on the suction side.
    Pool School - Suction Side Air Leaks
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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