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Thread: Pump Run time?

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    Join Date
    Aug 2011
    Location
    Middle TN
    Posts
    83

    Pump Run time?

    We finally filled the pool on July 3rd and turned on the salt cell July 7th. We have a 2 speed pump. So far for simplicity the first two days we ran manually on high for 48 hrs and since then we have been running continuously on low speed except for a couple bumps up to high speed to clean or mix chemicals. I read pool school's article on pump run time and it seems to say that we should be running about 4 hours on high or 8 hours on low and/or enough to turn the pool once per day. The pool is roughly 21,000 gallons. I installed a flo-vis flowmeter in the plumbing after the heater before the salt cell and it reads rough 70-75 GPM on high and about 30 GPM on low. So I guess one turn would be 5 hours on high or 12 hours on low? As far as skimming action it works ok on low but skims much better (almost a whirlpool on high). So I guess my question is... how long would you run it? 5 hours on high? maybe split 2.5 and 2.5? Would you run it morning or night or ?? Right now the pool water temp is 82 degrees, we COULD turn on the heat pump but I'd like to get as much free heat as possible from the sun if that makes any difference on recommendations. Thanks for your help!
    18 x 36 Vinyl Inground, Coverstar Cover, 2 speed Pentair Pump, Hayward 425 Sq Ft Cartridge Filter, Hayward Heat Pump, Prologic PS8, T-15 Salt Cell, 2 Colorlogic LED lights, TF-100 Test Kit

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    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Pump Run time?

    I would try eight hours on low. That will save electricity and is almost certainly more than enough.
    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
    Aug 2011
    Location
    Middle TN
    Posts
    83

    Re: Pump Run time?

    Jason, would your recommend day or night? Trying for the max solar heating.... and would you run that 8 continuously or split it?
    18 x 36 Vinyl Inground, Coverstar Cover, 2 speed Pentair Pump, Hayward 425 Sq Ft Cartridge Filter, Hayward Heat Pump, Prologic PS8, T-15 Salt Cell, 2 Colorlogic LED lights, TF-100 Test Kit

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