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Thread: When to run the filter

  1. Back To Top    #1

    Join Date
    Jul 2008
    Seacoast, NH

    When to run the filter

    Is it better for the pool to run the filter at night or during the day, or does it matter? Of course, if my area is ever under an energy shortage like happens where I used to live, I'll run it when they tell me it is best to run it.
    19,000 gallons
    Stay-Rite System 3 Cartridge filter
    IG vinyl, MasterTemp 400 Propane heater
    Intellichlor 40 SWG, 2006 Taylor Test Kit with Speed Stirrer
    1.5 HP Pump

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: When to run the filter

    It is just slightly better to run the pump during the day. But if you have time of day electrical rates, the cost savings makes it worth running at night.
    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
    Jul 2008
    South Eastern PA

    Re: When to run the filter

    We have time of day rates so we run our pump 3 hours from 9pm - 12am, 3 hours from 6am - 9am, and then four 15 minute intervals spread throughout the day to keep the water circulated.
    8200 Gal Vinyl 18' AG Vogue Pool
    150lb Hayward Sand filter with 1-1/2 HP Maxim Pump
    Intex SWG
    Some of the most helpful links for pool owners: Pool School | Pool Calculator | The best test kit | Chlorine/CYA chart

  4. Back To Top    #4

    Join Date
    Dec 2007
    Central New York

    Re: When to run the filter

    When you hook-up the SWG, you'll have to adjust the run time of your pump.

    Every pool is different, but you'll get hang of what your pool needs during times of weather, pool load and what your test results show.

    20 X 40 foot vinyl Borates and Salt Pool
    Rolachem Chlorine Feeder
    Hayward 27 inch sand filter with 80 lbs of pea gravel
    Jacuzzi Splash Pak SP55 DE filter in parallel
    Pentair VF3050 pump

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