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Thread: determining speed to run variable speed pool pump

  1. Back To Top    #1

    Join Date
    Apr 2015
    Las Vegas, NV

    determining speed to run variable speed pool pump

    We recently purchased a home with a pool and I am quickly trying to learn everything i can to maintain the pool. Fortunate to have discovered this website. I have a variable speed pool pump and a 14K gallon pool (specifics details about my pool are below). I was trying to figure out what speed I can run the pump to allow proper circulation of water and to be most energy efficient.

    Some additional info...i live in Vegas where the summer temps are high...I have a spa which is slightly elevated with a waterfall from the spa into the pool (I've noticed that I need to keep the pump running at 1500 rpm to maintain the waterfall). I currently run the pool 9 hrs a day (9am-6pm)- 6hrs at 1800 rpm and 3 hrs at 2800 rpm (based on recommendations I got at Leslie's). The 3hrs at the higher speed are to allow my Hayward cleaner to clean the pool, which doesn't seem to move well at the lower speeds.

    So my question is if there is a way to lower my pump speed while maintaining circulation of water from my spa to the pool and to have my cleaner continue to run (sorry if this is a bit confusing).
    14K gal IG plaster with spa
    Starite Intellipro variable speed pump
    Starite System 3 Mod 60 sqft cartridge filter
    Taylor K-2006 Test Kit
    Hayward Aquanaut 200 cleaner

  2. Back To Top    #2
    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: determining speed to run variable speed pool pump

    The Intellipro's most efficient (GPM/Watt) speed is around 1000 RPM so I would stay about that. The next consideration is the skimmers. Too low a flow and they may not collect debris very well so you may need to up the speed for that. Cleaners as well require higher speeds then the most efficient. So the short answer is trial an error.

    But I can tell you that 9 hrs a day is way too much run time. Most pools can get away with 4 hours or less run time.
    Hydraulics 101; Pump Ed 101; Pump and Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, 1/2 HP 2sp pump, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater, ThePoolCleaner

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