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Thread: Replacing a motor on a pump, and getting the correct size for your pool?

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    mas985's Avatar
    mas985 is offline Lifetime Member Whizbang Spinner mas985 3 stars mas985 3 stars mas985 3 stars
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    Default Re: Replacing a motor on a pump, and getting the correct size for your pool?

    If I went with the SQS1072R, would I need a new impeller and/or diffuser? What about with the UQS1102R or HSQ125?
    HSQ125 may be an issue because of the back end. I can't guarantee that would fit on the motor support.

    As for the impeller, it depends on the service factor of your current pump motor. If the current service factor is 1.25 or lower, then the impeller is fine. Diffuser would not change either way.

    Timer:

    http://www.amazon.com/Intermatic-T10...W61QF3SM3H6H1T

    http://www.amazon.com/Intermatic-PE1...BXFB6W5PGHAXZ5
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Default Re: Replacing a motor on a pump, and getting the correct size for your pool?

    According to the label on the current pump, it's a USQ1102 equivalent, with a SF of 1.25.
    IMG_1397.jpg

    Thanks for all the help! I think I'm going to get or order the SQS1072 after checking with my local pool warehouse.
    26,000 gal IG vinyl liner pool (20'x40'), Waterway SMF-110 wet end w/ Century SQS-1072R motor, Pac-Fab Triton TR60 sand filter, K-2006A. Manually added chems: 12.5% NaClO liquid, granular CYA, baking soda, 31% muriatic acid.

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    Default Re: Replacing a motor on a pump, and getting the correct size for your pool?

    Quote Originally Posted by mas985 View Post
    Am I understanding this right... could this be used to program when the pump is on while also putting a timer on when the pump is switched to a certain speed? Would the main on/off timer feed the switch that determines when the pump is on full speed? That's the sort of thing I'd find handy to have, with manual overrides (if possible.)
    26,000 gal IG vinyl liner pool (20'x40'), Waterway SMF-110 wet end w/ Century SQS-1072R motor, Pac-Fab Triton TR60 sand filter, K-2006A. Manually added chems: 12.5% NaClO liquid, granular CYA, baking soda, 31% muriatic acid.

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    Default Re: Replacing a motor on a pump, and getting the correct size for your pool?

    Never mind the previous post. I found the wiring diagram on how it works.
    Last edited by mitchryan912; 07-20-2015 at 02:11 PM.
    26,000 gal IG vinyl liner pool (20'x40'), Waterway SMF-110 wet end w/ Century SQS-1072R motor, Pac-Fab Triton TR60 sand filter, K-2006A. Manually added chems: 12.5% NaClO liquid, granular CYA, baking soda, 31% muriatic acid.

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