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Thread: New owner

  1. Back To Top    #1

    Join Date
    Sep 2013
    Location
    Dallas Oregon
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    4

    New owner

    Hi all, new pool owner. Always looking to learn and understand the way things work.
    First question, is it more effective to heat the water with the pump on high speed or low speed?
    New Fiberglass IG pool/spa combo
    2speed 2 HP intelliflo
    Sand filter
    Heat pump
    SW intellichlor

  2. Back To Top    #2

    Join Date
    Feb 2008
    Location
    Denton, TX
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    5,061

    Re: New owner

    Welcome to TFP!

    Interesting question. Not sure what would work better. We'll see what others have to say.

  3. Back To Top    #3

    Join Date
    Jun 2011
    Location
    Long Beach, CA
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    2,671

    Re: New owner

    With a heat pump, I would think the best speed will depend on the temperature of the air. If the temperature is marginally warm enough to run the heat pump, then I think running on slow speed would help to heat up the water and you would get a higher temperature gain, however, if the temperature is warm enough to get a 2+ degree raise on the outlet water while on high speed, I would think you will benefit most on high speed.
    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
    Sep 2013
    Location
    Dallas Oregon
    Posts
    4

    Re: New owner

    Thanks for the welcome.
    It's fairly cool here in the PNW so I guess I will try both and see what happens.
    The spa runs on high speed and heats pretty quickly at around an hour due to being much smaller amount of water, I could run a test there since it doesn't take long to heat up.
    Right now the pool is getting rained on/in hope to get the cover installed next week.
    New Fiberglass IG pool/spa combo
    2speed 2 HP intelliflo
    Sand filter
    Heat pump
    SW intellichlor

  5. Back To Top    #5
    wjr75's Avatar
    Join Date
    Jun 2013
    Location
    IL
    Posts
    816

    Re: New owner

    I have a bypass valve on my 400BTU heater that I keep at 45deg or 50% bypass. When it is fully closed letting all the water flow through the heater the hot tub doesn't heat as fast for some reason. I guess if the water is flowing to fast past the heat exchanger it doesn't have enough time to absorb the heat. Not sure where the excess heat goes...maybe up the top stack? I don't have a variable speed pump.
    Inground 22k gallon gunite 15x31 main pool, 15x7 wading pool/sunning deck, hot tub/with overflow (9' octagon with limestone top) & slide NSWG, Aqua Blue Pebble Sheen
    Filter dual cartridge Sta-rite 450sq/ft, TF-100 Test Kit
    Heater Raypak 2100 400k btu cupro-nickel exchanger
    Auto pool cover, Polaris 280 auto pool cleaner, Jandy AqualinkRS8 Remote Control System

  6. Back To Top    #6

    Join Date
    Sep 2013
    Location
    Dallas Oregon
    Posts
    4

    Re: New owner

    That's was my thinking as well, right now I have the pool on low speed for 8hrs and the hot tub on high speed for 2 hrs. I think low speed is .25HP, and it is super quite I have to look in the pump to see if it even running lol.
    New Fiberglass IG pool/spa combo
    2speed 2 HP intelliflo
    Sand filter
    Heat pump
    SW intellichlor

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