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Thread: SPA jets flow water but no bubbles

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    SPA jets flow water but no bubbles

    Just had the whole pool replumbed and plastered. Hooked up the SPA jet pump today and found only one jet had bubbles coming out. After priming the system fully, no bubbles are coming out of any of the jets. Any thoughts on what the issue might be?

    thanks in advance...
    24k gal 16x38, spa 7x6, Colorscape Caribbean Blue plaster, Pentair Intelliflow, Hayward jacuzzi air pump, Pentair 520 filter, Raypak 336k cu-ni heater, Aquabot Turbo T... pool remodel finished 8/2012.

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    mas985's Avatar
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    Re: SPA jets flow water but no bubbles

    Something is probably clogged after the work.

    If the jets have strong water flow, then the air intake is probably clogged. They might have left a bag or cover over the intake to protect it during the work. Also, if you have valves that control the air flow, make sure those are open. Blower?

    If the water flow is low as well, then the jet itself might be clogged. Remove the jet nozzles (deep inside pipes) and see if you can't flush out the jets.
    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 flow water but no bubbles

    Thanks for the fast reply...quicker than the PB ever replies.... I won't go there...

    No valve on the air pipe. No blower either.

    The flow is strongest on the first jet and less on the 4th. Fairly strong on all of them.

    What do you think about capping off the first 3 jets and pressurizing the 4th with a garden hose? They upsized the air line from a 1" to a 1 1/2" so whatever is lodged in there should be able to move through the larger pipe.
    24k gal 16x38, spa 7x6, Colorscape Caribbean Blue plaster, Pentair Intelliflow, Hayward jacuzzi air pump, Pentair 520 filter, Raypak 336k cu-ni heater, Aquabot Turbo T... pool remodel finished 8/2012.

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    Re: SPA jets flow water but no bubbles

    If you have a shop vac blow air through the air line, may just have more water in it then it can clear on its own.

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    Re: SPA jets flow water but no bubbles

    Quote Originally Posted by Just-a-PB
    If you have a shop vac blow air through the air line, may just have more water in it then it can clear on its own.
    I'll give it a try in the morning....thanks for the input!
    24k gal 16x38, spa 7x6, Colorscape Caribbean Blue plaster, Pentair Intelliflow, Hayward jacuzzi air pump, Pentair 520 filter, Raypak 336k cu-ni heater, Aquabot Turbo T... pool remodel finished 8/2012.

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    Re: SPA jets flow water but no bubbles

    You find any goodies in there?
    25k I/G ecostar ccplus Polaris plaster

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    Re: SPA jets flow water but no bubbles

    I used a wet vac as Just-a-PB recommended and was able to get the jets working. Then I let it set for a few minutes and tried it without the vac and it would not draw air...same as before.

    I have a theory that the 1 1/2" upsized pipe installed by the PB is causing the problem. The vacuum created by the jets isn't enough to draw all the water from the 1 1/2" pipe into and through the previously existing 1" pipe. They should have replaced all the 1" pipe to prevent constriction. The the wet vac provides enough pressure to overcome the restriction.
    24k gal 16x38, spa 7x6, Colorscape Caribbean Blue plaster, Pentair Intelliflow, Hayward jacuzzi air pump, Pentair 520 filter, Raypak 336k cu-ni heater, Aquabot Turbo T... pool remodel finished 8/2012.

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    Re: SPA jets flow water but no bubbles

    If they re-plumbed part of it, it may not have a Hartford loop.
    So the pipe is filling with water unable to clear it.
    Size shouldn't be a problem as we do our air lines in 2".
    You can always extend that line and add an air blower.

    Just as a thought, if you just had it replastered as well, and now have a more powerful pump, you maybe creating back pressure on the heads.
    Remove the eyeball fittings at each jet and see if it helps air movement.

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    Re: SPA jets flow water but no bubbles

    You were right...removing the eyeball nozzles cleared the water from the line and the bubbles started up.

    Any ideas to releave the backpressure beside leaving the eyeball nozzels off?

    It is the same pump and there was also 2" jet lines previously. I did not see a Hartford loop in the 1 1/2" plumbing they did. It was a strait run from the 1" pre-existing pipe. I inspected it when the ditch was still open.

    A blower sounds like a fun addition...more bubbles I suppose...
    24k gal 16x38, spa 7x6, Colorscape Caribbean Blue plaster, Pentair Intelliflow, Hayward jacuzzi air pump, Pentair 520 filter, Raypak 336k cu-ni heater, Aquabot Turbo T... pool remodel finished 8/2012.

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    Re: SPA jets flow water but no bubbles

    Blower will also super charge the pressure on the jet as well.

    As far as the eyeball fittings, you can leave them out, get larger ones, or drill out the ones you have with a Step bit.
    You would want to drill them out as large as you can, it makes a nice clean, smooth cut.

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    Re: SPA jets flow water but no bubbles

    Thanks for the great advice... I pulled the eyeballs out for now and the bubbles fire right up!

    Any suggestions for a good blower? The pad is about 70 feet from the pool, so I'm thinking it might need a larger one.
    24k gal 16x38, spa 7x6, Colorscape Caribbean Blue plaster, Pentair Intelliflow, Hayward jacuzzi air pump, Pentair 520 filter, Raypak 336k cu-ni heater, Aquabot Turbo T... pool remodel finished 8/2012.

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    Re: SPA jets flow water but no bubbles

    I like the Air supply Silencer. Very quite operation.
    Come in 110, and 220v versions, with and without a switch on them.
    Not sure how many jets you have, but a 1 or 1.5hp would be plenty.
    Too big is not good as it just bubbles up more, and can overheat and shut off.
    Check out the install guide, it helps with sizing.
    http://www.airsupplyflorida.com/outdoor.htm

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    Re: SPA jets flow water but no bubbles

    Only 4 jets. Thanks again for the great advice! Looks like it just sits on top of the breather tube. Not very expensive either.

    Probably best to add a circuit breaker and run a separate 240 power supply from the control box with a 1 or 1 1/2 HP motor rather than wiring directly to the Jet pump.

    Thanks again for your help figuring this out...
    24k gal 16x38, spa 7x6, Colorscape Caribbean Blue plaster, Pentair Intelliflow, Hayward jacuzzi air pump, Pentair 520 filter, Raypak 336k cu-ni heater, Aquabot Turbo T... pool remodel finished 8/2012.

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