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Thread: Air hiss between basket and impeller

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    Join Date
    Jul 2015
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    Roswell, GA
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    Air hiss between basket and impeller

    Ok. So I think I found how air is getting in my system. I can hear a hiss at the point where the basket attaches to the impeller housing. I see 4 bolts that connect the 2 and there is a small gap in the top middle despite the bolts looking like they are flush where they hold the plates together.

    I confirmed by putting my finger over and hearing less of it and then by pouring water over the tiny gap. I can hear it get quiet as it sucks in the water and then back to normal.

    I figure this might be an o-ring issue between the 2 parts but should it look like a gap is normal, like the metal is formed that way instead of being flat across?
    11k gal ig vinyl, Pentair Superflo VS, Heyward 3030 cartridge filter, dolphin 4 deluxe.

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    Jul 2015
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    Re: Air hiss between basket and impeller



    Picture of gap on top
    11k gal ig vinyl, Pentair Superflo VS, Heyward 3030 cartridge filter, dolphin 4 deluxe.

  3. Back To Top    #3
    kevin11's Avatar
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    May 2015
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    Northeast,Alabama
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    Re: Air hiss between basket and impeller

    I have a sta-rite pump and I think mine has square gasket where yours is leaking air. Could it be missing a gasket there?
    18x36 IG, Vinyl, 20K Gal., Sand Filter, 1HP pool pump, 3/4HP slide pump, Taylor k-2006.

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    In the Industry

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    Re: Air hiss between basket and impeller

    There is a gasket there and it is common for it to fail Replace it, its a cheap fix.

  5. Back To Top    #5

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    Jul 2015
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    Roswell, GA
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    Air hiss between basket and impeller

    Took me a while, but I got to it and no more suction side leak. No bubbles from returns. Yay!

    Btw, oring was broken.
    11k gal ig vinyl, Pentair Superflo VS, Heyward 3030 cartridge filter, dolphin 4 deluxe.

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