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Thread: When to run my pump

  1. Back To Top    #1

    Join Date
    May 2016

    When to run my pump

    Is there an optimal time of day to run my pump, and what is the justification for running the pump during a particular time of day? And while we're at it, how long should I run my pump? I have a 15000 gal above ground pool, with a 1.5 hp pump with sand filter. Thanks in advance.

  2. Back To Top    #2

    Join Date
    Jun 2015
    East Hampton CT

    Re: When to run my pump

    Pool School - Determine Pump Run Time

    Best bet is to run your pump for at least a portion of dusk/evening hours, since it is recommended that is when chlorine should be added for minimal loss of strength due to the sun.

    I personally have my pump timer set for 1-9pm. It's a comfort thing for me and this covers peak swim time through sundown, when I add chemicals. I used to run it 12 hours, but I can't seem to bring myself to lower it to 4.

    There are multiple schools of thought and I'm sure you'll get a number of personal preferences.
    17' x 35' outdoor in-ground Grecian shaped w/ vinyl liner. ≈ 21,000 gallons. Hayward S-200 Sand Filter and 1 HP Hayward Super-pump. Other Accessories: slide, light, ladder, fiberglass stairs, TF-100. Baquacil Conversion - June 2015, SLAM How-to, Chlorine/CYA Chart

  3. Back To Top    #3
    Mod Squad
    Join Date
    Aug 2012
    DFW, TX

    Re: When to run my pump

    2-3 hours AM and 2-3 hours PM to keep debris skimmed off the surface. If you have cheaper rates at night that is a good reason to run during off-peak times. I run mine during the day in spring and early summer so that solar can run and heat the pool. Off at night to help hold the heat. Run it at night during the hottest part of summer to cool the pool either with night air or the solar panels.

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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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