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Thread: Spa plumbing air line

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    Spa plumbing air line

    I'm just about to finish up the plumbing for my spa and I would to see if anybody know if the air lines should be looped. I can't seam to get to a few area so I was just going to tee off another jet and cap the one end.

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    mas985's Avatar
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    Re: Spa plumbing air line

    No need to loop an air line around the spa. They have very little loss if large. Just keep the pipe large (2.5") close to the venturi tees.

    Are you planning to put in a Hartford loop?
    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: Spa plumbing air line

    Thanks
    Yes Hartford loop, 2.5" supply lines down to 2" at jets and the air line is 1.5". The equipment is about 3'-4' away.

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    mas985's Avatar
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    Re: Spa plumbing air line

    Air line is 1.5"? That is really small even for 3'-4' run. I would use minimum 2".
    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: Spa plumbing air line

    That's what the jets have. Should I up size at the Hartford loop?

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    mas985's Avatar
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    Re: Spa plumbing air line

    I would keep the air line the same size all the way back to the pad. Smaller air lines will create more noise not to mention less bubbles.
    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: Spa plumbing air line

    I understand what you're saying, but the waterways jet bodies have 1.5" air lines and the Hartford loop is already buried in concrete so the only option is to up size at the loop to the pad. Do you think this will help?

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    mas985's Avatar
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    Re: Spa plumbing air line

    It couldn't hurt. At least the noise won't be as bad.
    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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