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Thread: Pump wont prime off one skimmer

  1. Back To Top    #1

    Join Date
    Jun 2012
    Location
    Oakton,Va
    Posts
    39

    Pump wont prime off one skimmer

    All,

    I have 2 skimmers in the deep end of the pool there is flex PVC from skimmer (~3') to Sch 40 PVC. The Flex is 1.5" and Sch 40 is 2". This is also an old Anthony pool and is combines the main drain and skimmer piping under the skimmer ( http://blog.poolcenter.com/article.aspx?articleid=6327 ). The runs to the pump are about 60 Ft and 80 Ft. I am making a guess without knowing the exact run.

    All that said - when I try to pull off one skimmer the pump is unable to pull enough water. Water does flow into the pump just not enough volume to fully prime.

    I did have the lines tested and one skimmer hold pressure and the other one looses pressure (suction side leak). The one that loses pressure is the combination skimmer (Main Drain/Skimmer). The main drain was plugged.

    Anythoughts as to why it wont prime off one skimmer?

    I am using a 2hp Whisperflo - and I have checked all gaskets on the pump side to make sure nothing was leaking.
    35000 gallon inground, 2hp Whisperflo, Pentair FNS Plus, Polaris 380

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Pump wont prime off one skimmer

    I can certainly see it being unable to prime off the skimmer that won't hold pressure. I would expect it to be able to prime off the other skimmer however.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3

    Join Date
    Jun 2012
    Location
    Oakton,Va
    Posts
    39

    Re: Pump wont prime off one skimmer

    Nope won't hold a prime with either line. I am thinking the flex pipe is collapsing. Unfortunately with old Anthony skimmers there is a T at the bottom of the skimmer vs a 90 and I have been unsuccessful in fishing a camera through to verify.
    35000 gallon inground, 2hp Whisperflo, Pentair FNS Plus, Polaris 380

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