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Thread: Better to run pump twice per day for 2 hrs rather than 4 hr?

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    Join Date
    Jan 2011
    Location
    Houston, TX
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    56

    Better to run pump twice per day for 2 hrs rather than 4 hr?

    Hi, just got a timer replaced and now have total of 4 timer dogs rather than 2.

    In the winter I will be running the pool pump 4 hrs a day. Is there an advantage to running it twice a day for 2 hrs a day?

    I was thinking, if I run it for 4 hrs, then it sits for 20 hrs. If I ran it for 2 cycles of 2 hrs each that would reduce the time the pool 'sits' to 10 hrs each day max...would it help with reducing algae, other benefits, etc?

    Thanks, Aaron
    15'x30' 10K gal, in-ground, cartridge filter, waterfall, spa, The Pool Cleaner, Purex Triton 250 heater, pool built ~1999.

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    Re: Better to run pump twice per day for 2 hrs rather than 4 hr?

    Yes, spreading the pump run time out across the day is better. Though it doesn't make a large difference, doing this does help a little.
    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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    Join Date
    May 2007
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    South Central NJ
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    Re: Better to run pump twice per day for 2 hrs rather than 4 hr?

    Remember to pull the Off pins in freezing temps are expected for more than a couple hours, shorter if its going to get really cold!

    Scott
    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

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    Re: Better to run pump twice per day for 2 hrs rather than 4 hr?

    Sometimes you can also run the pool at night to take advantage of cheaper electricity rates (not available in all areas). It tends to cool the pool down since nighttime temps are obviously cooler than daytime, but that shouldn't be a problem this time of year!

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    gpgyo's Avatar
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    Dec 2010
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    Houston, Texas
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    28

    Re: Better to run pump twice per day for 2 hrs rather than 4 hr?

    It would seem that turning the pump off/on twice per day versus once per day would increase wear and tear on the pump. Is it enough additional wear and tear that it should play a part in this decision?

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    37,879

    Re: Better to run pump twice per day for 2 hrs rather than 4 hr?

    No, a few additional on/offs each day won't make any measurable difference. If you turned it on/off every 30 seconds you might have a problem eventually, but on/off two to four times a day is just fine.
    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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