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Thread: Spa jets are weak.

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    Lou.'s Avatar
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    Spa jets are weak.

    How do I get my spa jets to strengthen without using air that is splashing water out n us over our heads? I got smaller jet covers n blocked one. There are 6 jets.

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    In the Industry

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    Re: Spa jets are weak.

    Off the cuff, either smaller jet nozzles or a bigger pump. More info or pics would help our diagnosis.

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    epro05's Avatar
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    Re: Spa jets are weak.

    I can't explain this, but my spa also has weak jets, until I turn on the air and let it run a few minutes and the flow from the jets strengthen dramatically. If I then turn off the air, the jets remain strong. Wish I understood why?
    27,500 gallon in ground gunite/plaster (1995). Attached Spa with fountain, spillway, and 2 lion heads streaming into the pool. Hayward pump and AO Smith UST1152 1.5 hp motor (single speed). Hayward 60 sq ft DE Filter (Model DE-6000). Kreepy Krauly cleaner.

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    mas985's Avatar
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    Re: Spa jets are weak.

    Wish I understood why?
    Because the blower is mainly for clearing the air pipe of water. Once the pipe is cleared of water, the venturi's can operate properly and keep the air pipe clear on their own. Nearly any spa can be built without the use of blowers but many PBs use them as a crutch because they don't know how to build a spa without a blower.
    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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    Lou.'s Avatar
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    Re: Spa jets are weak.

    What can I tell my Pb to fix about it?

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    mas985's Avatar
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    Re: Spa jets are weak.

    Usually, the simplest solution is to replace the jet nozzles with a smaller version. This increases the water velocity and makes the jet feel stronger. But it may or may not be possible depending the jet design.
    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 jets are weak.

    are they open all the way, are they adjustable by spinning the outer ring. my new spa last year, i got in and thought some of the jets were broken, turns out they were not open all the way

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    Lou.'s Avatar
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    Re: Spa jets are weak.

    Is yours a stand alone spa? Mine is connected to the pool plumbing. I just had the plumber out n nothing wrong or that he can do. So I blocked 2 of the 6 jets, Used smallest holes in jet cover on 2 for foot massage, n 2 med holed ones for back massage. Pressure has gone up to half of that with air. Livable pressure.

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    Re: Spa jets are weak.

    yeah, mine is cal spa standalone.

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    Lou.'s Avatar
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    Re: Spa jets are weak.

    Standalones are better for therapy n stronger I've noticed.

    18000 gal 9ft, swg, ig, dk blue plaster( Montego Bay), cartridge filter, attached spa, build finished September 1 2015, Pentair equipment and Legend creepy. Natural stone with salt for the -ions n health benefits. Worth it to me.

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