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Thread: how many hours should pump and filter run

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    Join Date
    Apr 2009
    Location
    South of Houston, Texas
    Posts
    18

    how many hours should pump and filter run

    Just wanted some opinions from the group.........How many hours a days should my pool pump and filter run. I live in texas so we are starting to get 80 degree days now, and sun hits my pool maybe 7-8 hours a day, more during the heat of the summer. If I dont have enough information in my signature, please ask me and I'll report back. Right now it is running about 7 hours, I have a little algea clinging to my rock and around returns, etc but not much. I will be testing with my new TF100 as soon as it arrives which should be about 1-2 days from now.
    IG pool gunite/Plaster, 33 x 20, 20000 gal., 4.5ft-5-3.5ft, Triton FNSP-36 DE filter 36sqft 90gpm 43200 in 8 hrs, WhisperFlo Triton 1.5HP, Polaris 280 with booster pump, and a Dog that loves to swim,South of Houston.

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    JasonLion's Avatar
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    May 2007
    Location
    Silver Spring, MD
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    37,887

    Re: how many hours should pump and filter run

    The amount of pump run time required varies dramatically depending on the relative size of your pump and your pool. If I saw correctly, you have a 1.5 HP WhisperFlo and a 20,000 gallon pool. That is a relatively large pump for that pool, so you probably only need 4 to 6 hours a day.

    The real test is to look at the water closely and notice how clear it is. Then adjust the run time and let it run that way for a week. Then look at the water again and adjust the run time based on what you see.
    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

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    duraleigh's Avatar
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    Apr 2007
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    Sebring, Florida
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    Re: how many hours should pump and filter run

    Ther's no set answer but 8-10 hours is a good place to start. Then, if you feel like your pool is not as clean as you like, if you're expecting more swimmers (or less swimmers), etc. you can adjust it upwards or down.

    If it is sparkling and pristine all the time, you can adjust it downward until you find a run time that works best for you.

    The demands on your pool are fluid so you should be prepared to adjust your runtimes.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Join Date
    Mar 2007
    Location
    Richmond, Va
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    179

    Re: how many hours should pump and filter run

    Given the above time frames, is it better to run the pump overnight or during the day. right now we run 24/7 and we probably don't need to.....
    18 ft.52" Round Atrium AG -7600 gallons, Sand Filter, Vinyl liner, Royal Entrance Steps, 80 lbs.solarsalt

  5. Back To Top    #5

    Join Date
    Feb 2008
    Location
    Flower Mound, TX
    Posts
    5,062

    Re: how many hours should pump and filter run

    I have a 2 HP WhisperFlo and a pool that is half the size of yours. I'll run it four hours a day in the morning, more than I would need to I am sure, but I like it skimming the surface since my wax myrtles dump leaves in there year round. Aside from that, I always run it when swimmers are in the pool to just keep things nice.

    Given the above time frames, is it better to run the pump overnight or during the day. right now we run 24/7 and we probably don't need to.....
    I think it is a good idea to time it to coincide with the addition of chemicals since those need to circulate. I usually add them in the morning (most do so in the late afternoon, I think) as that is the best time for me to deal with the pool at my house.
    10K gallon IG gunite with waterfall; Pentair CC320P filter; WhisperFlo 2 HP pump
    TF Test Kits - Pool Math - Pool School
    "It depends."- JohnT

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