Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: Changing speed on 2 speed pump

  1. Back To Top    #1

    Join Date
    Mar 2014
    Location
    Monroe, LA
    Posts
    19

    Changing speed on 2 speed pump

    Installed a new 2 speed pump this week that I plan to run on low speed 95% of the time. My question is do I need to shut the pump down when changing speeds or just flip the switch and change on the fly?

    Thanks,
    P. Whitlock
    17 x 35 fiberglass IG pool, 1.5 hp Pentair Superflo 2 speed pump, 150 ft2 Pentair Clean and Clear cartridge filter, Compupool SWG, Dirt Devil Electric Robotic Cleaner

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Changing speed on 2 speed pump

    You should be able to simply switch the switch to change speeds without turning the pump off. Of course the speed switch often has a middle position is off design, so at some level you are turning it off, but it isn't anything you need to think about.
    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
    Jun 2011
    Location
    Long Beach, CA
    Posts
    2,669

    Re: Changing speed on 2 speed pump

    You can change on the fly. I have mine on an automatic speed switching timer so it switches the speeds a couple times during the day to get some skimmer action.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

  4. Back To Top    #4

    Join Date
    Mar 2014
    Location
    Monroe, LA
    Posts
    19

    Re: Changing speed on 2 speed pump

    Thanks for your responses. I changed the speed from high to low and the pump made a "clunk" noise. I didn't even think about the ones that switch on a timer. Just wanted to not damage my new pump.
    Thanks,
    P. Whitlock
    17 x 35 fiberglass IG pool, 1.5 hp Pentair Superflo 2 speed pump, 150 ft2 Pentair Clean and Clear cartridge filter, Compupool SWG, Dirt Devil Electric Robotic Cleaner

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •