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Thread: Plumbing For Jet Pump for winter use

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    Plumbing For Jet Pump for winter use

    I close my pool but keep my inground spa open all winter. To prevent freezing I had to run both the filter pump and jet pump (spa) once the freezing weather stayed. I hear there is a way to plumb the system to run water through the jet pump when the filter pump is running so the jet pump doesn't have to run to keep from freezing. Does anyone know that configuration or diagram?


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    Mod Squad jblizzle's Avatar
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    Re: Plumbing For Jet Pump for winter use

    Welcome to TFP!!!

    If the jet pump is a completely separate loop, then I am not sure how that would easily be possible.

    Can you post up some pictures of your plumbing setup?

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    Re: Plumbing For Jet Pump for winter use

    Site wont let me download a phot
    30K gal inground, inground spa, built 2013, SWG, Cleaner, Jandy controller, Pentair pump, Taylor Test kit, cartridge filter, gas heater

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    mas985's Avatar
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    Re: Plumbing For Jet Pump for winter use

    You would just need to tie both spa suction lines together with a 2-way valve and the spa return lines together with a 2-way valve. When in "freeze" mode, you leave the valves open and run just the filter pump. When using the spa and the jets are running, the the valves should then be closed. I assume the controller cycles between spa and pool modes when in freeze mode?
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Mod Squad jblizzle's Avatar
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    Re: Plumbing For Jet Pump for winter use

    To post more/larger pictures, you either need to raise your storage allotment by Becoming a TFP Supporter or follow the How To Post Pictures tutorial.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
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    Re: Plumbing For Jet Pump for winter use

    Last winter I had the pool co close it and they set it up so it was always in pool mode and switched the valves to the spa, so the system thought it was in pool mode when it was actually running the spa, that way the electric valves don't have to do anything in the winter.
    30K gal inground, inground spa, built 2013, SWG, Cleaner, Jandy controller, Pentair pump, Taylor Test kit, cartridge filter, gas heater

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    Re: Plumbing For Jet Pump for winter use

    Thanks for the help, photos are posted
    30K gal inground, inground spa, built 2013, SWG, Cleaner, Jandy controller, Pentair pump, Taylor Test kit, cartridge filter, gas heater

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    Re: Plumbing For Jet Pump for winter use

    Mark, I added photos, see if my plumbing works for your solution, thx
    30K gal inground, inground spa, built 2013, SWG, Cleaner, Jandy controller, Pentair pump, Taylor Test kit, cartridge filter, gas heater

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    mas985's Avatar
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    Re: Plumbing For Jet Pump for winter use

    Is that an equipment room that could be heated? Does it have a roof?

    Do you know if the pipes that run to the spa are below the frost line (~3') ?

    If yes to both questions, then maybe you don't need to run the pump at all to prevent freezing. You would just need to run the spa heater once in a while so the water in the spa won't freeze. A cover on the spa would help that.

    But yes, you could still tie the suction and return lines together but then you will have to manually switch them back and forth because I don't think you can use an actuator that is triggered off of freeze control.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Plumbing For Jet Pump for winter use

    its an outdoor pool room with walls and a mesh roof/cover, extra city permit for anything different. thanks for you advise
    30K gal inground, inground spa, built 2013, SWG, Cleaner, Jandy controller, Pentair pump, Taylor Test kit, cartridge filter, gas heater

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    mas985's Avatar
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    Re: Plumbing For Jet Pump for winter use

    One option is to cover the room with a tarp and use just a simple light bulb to keep temps above freezing which really shouldn't be too hard since it is somewhat sheltered. If the pipes go below 32" underground, they should be protected from freezing.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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