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Thread: Lowest RPM/GPM for Intelliflo VS VF (11012)

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    Join Date
    Jun 2016
    Location
    St Pete, FL
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    7

    Lowest RPM/GPM for Intelliflo VS VF (11012)

    I have a question about programming my VF pump. I have a 13,000 gallon pool, and I programmed the pump to run 24/7 and to turn the pool over 1x/day.

    Doing the math, (13,000/1440 minutes in a day), I would expect the pump to run at about 9 GPM. However, on a clean filter (2 PSI) it runs at 1035 RPM and 15 GPM (about 130 watts). Admittedly, that's pretty darn cheap, maybe 35 cents per day.

    My question is why does the pump have a lower limit of 15 GPM (@1035 RPM)? Shouldn't it drop down to 9 GPM (and lower RPMs) to accommodate the requested 1 turnover in 24 hours, rather than the 1.7 turnovers I'm actually getting?

    Thank you,
    Jon

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    mas985's Avatar
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    May 2007
    Location
    Pleasanton, CA
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    11,487

    Re: Lowest RPM/GPM for Intelliflo VS VF (11012)

    I wouldn't run the pump 24/7. I would only run it long enough to keep it clean.

    Also, running a VS pump much below 1000 RPM doesn't reduce energy use by much but it does reduce flow rate so overall efficiency goes down.

    If 1035 RPM works ok for the skimmers and anything else that you have, keep it there and just reduce run time. You don't need 1 turn per day. Pool School - Determine Pump Run Time
    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

  3. Back To Top    #3

    Join Date
    Jun 2016
    Location
    St Pete, FL
    Posts
    7

    Re: Lowest RPM/GPM for Intelliflo VS VF (11012)

    Thank you, Mark. I'll experiment with shorter run times!
    St. Petersburg, FL
    13k IG PebbleTec; Pentair Intelliflo VS VF 11012; Sta-rite Posi-Clear PXC95; CompuPool SWG; Hayward Navigator

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