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Thread: What size blower would you need for 20x40 pool?

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    What size blower would you need for 20x40 pool?

    With our new space came a 20x40 inground pool. Friends helped close last year but are having problems finding something strong enough to blow out all lines. Any suggestion?
    Thank you

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    Qwaxalot's Avatar
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    Re: What size blower would you need for 20x40 pool?

    A good quality shop-vac should do the job. A true 3/4 HP machine is right. That said, it's difficult to tell what the real HP is.
    The returns should blow out with almost anything. The main drain is a different story. However if you get any bubbles out of the main, you'll be fine.
    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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    Re: What size blower would you need for 20x40 pool?

    Thanks ... we were only able to get one of the returns to clear with what we have ... afew in second ... none in the third...... bubbles in one of the two returns...

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    X-PertPool's Avatar
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    Re: What size blower would you need for 20x40 pool?

    If you want what most pool guys use.
    http://www.amazon.com/gp/aw/d/B004BNR5D ... 023&sr=8-1
    -Kevin
    X-Pert Pool Service
    x-pertpool.com
    X-Pert Pool on Facebook and @XPertPoolServic on Twitter
    22,000 gal / 16' x 32' / Vinyl / Hayward s244t /Pentair SuperFlo 1 hp

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    Re: What size blower would you need for 20x40 pool?

    Thank you very much ... will look into it!

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    Re: What size blower would you need for 20x40 pool?

    thats what i bought, why take any chances, worked awesome, blew the lines out with aggresion
    15,000 gallon inground fiberglass pool with spa. 350lb Sand filter, 1.5 hp pump, and heater

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    Re: What size blower would you need for 20x40 pool?

    It does not take very much to blow out lines. Even a small compressor will do the job. A 10 foot deep main drain would only require about 5 psi to blow out.

    Example = $59.99 from
    http://www.harborfreight.com/air-tools/ ... 95275.html

    You can use an adaptor that will screw into the pump drain plug.

    Example = $ 2.95 from
    http://www.amazon.com/Amflo-701-2-npt-t ... B0002V4Q4I

    Note: A Shop Vac probably won't blow out a main drain, as it is not designed to provide any significant pressure.

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    X-PertPool's Avatar
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    Re: What size blower would you need for 20x40 pool?

    I think they are looking for a large volume of air, not that it really does anything better. Maybe it's just a mental satisfaction thing when you get lots of air coming out a return vs a constant burping that you'd get with an air compressor. I use the cyclone vac 99% of time, I use an air compressor on those paramount automated self cleaning pool things.
    -Kevin
    X-Pert Pool Service
    x-pertpool.com
    X-Pert Pool on Facebook and @XPertPoolServic on Twitter
    22,000 gal / 16' x 32' / Vinyl / Hayward s244t /Pentair SuperFlo 1 hp

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