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Thread: Hayward pump & sand filter sucking air

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    Hayward pump & sand filter sucking air

    My pump is creating a tornado-like thing in the skimmer and sucks air constantly. The only thing I have found that helps is to run it with 3 chlorine tabs on their sides in the basket. I guess this reduces the suction enough to not make the whirlpool thing. But as soon as those tabs break down it's back to sucking air. What's the problem?

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    dattia's Avatar
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    Jun 2008
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    Re: Hayward pump & sand filter sucking air

    Is your weir door seated correctly?
    27' round AG
    Hayward Matrix 1 1/2 HP Pump
    Hayward S210T Sand Filter

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    UnderWaterVanya's Avatar
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    Re: Hayward pump & sand filter sucking air

    Pool volume OK? Could you be a couple inches low?
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Re: Hayward pump & sand filter sucking air

    I have no clue what a weir door is. I've run at different levels, and it still does it.

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    Re: Hayward pump & sand filter sucking air

    Ok i figured out what that door is... it's never had one. There's not a place where one is supposed to go either.

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    dattia's Avatar
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    Re: Hayward pump & sand filter sucking air

    Sorry I couldn't help. I get the same vortex when my weir door is unseated, thought that may be an easy answer for you.

    I think I've read where people have put a few rocks in their skimmer basket, but it seems to me that doesn't address the underlying issue. Good luck, I'm sure someone here will be able to help out.
    27' round AG
    Hayward Matrix 1 1/2 HP Pump
    Hayward S210T Sand Filter

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    Re: Hayward pump & sand filter sucking air

    Thanks anyway Dattia. Right there has to be an underlying issue... it never did this before about a month ago.

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    UnderWaterVanya's Avatar
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    Re: Hayward pump & sand filter sucking air

    Could you add your pool info to your signature? pool-school/read_before_you_post That would help us help you. Any pictures you could give of the skimmer would help also.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Qwaxalot's Avatar
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    Jun 2012
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    Re: Hayward pump & sand filter sucking air

    Does your pool have a main drain, if so open it more and stop down the skimmer some. No main drain? add more water.
    In the industry, CSP (Certified Service Professional) by the NSPI and it's successor the APSP. My company services over 600 pools every year. I think the practices regularly espoused on this forum (especially the BBB method) are outstanding; however my comments will be often oriented towards the goal of getting it done, and getting it done right now!

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