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Thread: Plunger valve - small knob

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    Plunger valve - small knob

    I have a question about these intex plunger valves. There is a small knob next to the nut that screws it on to the pool. What is that used for?
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    MikeInNH's Avatar
    Join Date
    Sep 2007
    Southern NH

    Re: Plunger valve - small knob

    Kinda looks like it is there to allow you to get air out of the system.
    2007 1st full year with AG pool~15k gallons 18'x33' JW
    6/2010 added 2 button Intex SWG-painless except for when reset
    Switched to BBB from Baquacil (couldn't pay me to go back)

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    Join Date
    Jul 2015
    Port Neches, TX

    Re: Plunger valve - small knob

    it is actually an air valve that sucks air in if the vacuum is too strong for the amount of water coming out (like if have a stronger pump than what came with the pool, or if the strainer basket gets blocked). I have to cover mine when vacuuming otherwise my pump loses suction from the air coming in......
    22' x 52" Intex UltraFrame ABG, 10,500 gallons
    using TF-100 test kit
    Krystal Klear 633T Filter Type B pump - 2,500 GPH
    Intex wall-mount surface skimmer

  4. Back To Top    #4

    Re: Plunger valve - small knob

    thank you. Mine was loose and I tightened it but I wondered if maybe I shouldn't have

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