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Thread: Right size pump

  1. Back To Top    #1

    Join Date
    Oct 2008
    Location
    Bedford, TX
    Posts
    31

    Right size pump

    Trying to get the right pump for my pool. I hava a 12x24 AGP 52" walls. I currently have a Aquatools 1.5hp pump and same brand 200lb sand filter.

    The pump started leaking this summer and the back side motor is squelling a little (4 years old)
    1.5 plumbing, 1 inlet and 1 return line 6ft each
    Looking at replacing the pump.
    I came up with the following
    9200 gallons
    Filter max flow=50gpm
    Max flow pipes=42gpm
    Min flow rate=20.8gpm
    Max flow rate=42gpm

    My calulations are telling me a 1hp would be ideal and that I may be overpowered now. The only thing I run is a polarus 65.

    Any suggestions would be most helpful
    12x24 AGP, 10k, 1 hp 2 speed Waterway pump, Hayward C900 Cartridge filter, Polaris 65, maintained by Walmart's 6% Bleach.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887

    Re: Right size pump

    Welcome to TFP!

    A full rated 3/4 HP, or 1 HP max rated, pump should be fine for a fairly small pool like that one. If you are interested in saving electricity you might think about getting a two speed pump or even a variable speed pump. Either of those can save you a substantial amount of electricity.
    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
    Oct 2008
    Location
    Bedford, TX
    Posts
    31

    Re: Right size pump

    Does it matter if the replacement pump is a side discharge but can be rotated up? The original is a top.
    12x24 AGP, 10k, 1 hp 2 speed Waterway pump, Hayward C900 Cartridge filter, Polaris 65, maintained by Walmart's 6% Bleach.

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