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Thread: Older spa, air bubbles won't completely turn off.

  1. Back To Top    #1

    Join Date
    Sep 2015
    Location
    Oregon
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    Older spa, air bubbles won't completely turn off.

    I just bought a house with an American Spas built in 1990. It has a HydroQuip Designer Series spa pack with air controls. I recently fixed a few issues and it's running better than ever except I have a problem with the air bubbles.

    On the top control panel, I have two buttons, one for what I assume would be the light (that doesn't work) and one that cycles through four jet settings, I call them jets "A", jets "B", both sets, and off. Then there are two rotating dials that control the air bubbles, one for each set of A & B jets. The jets and the air bubbles all flow strong when turned on. The problem I'm having is that on set A jets, the bubbles don't completely stop when I turn the dial to "off", instead they drop to a pulsing on/off cycle where they will push out a small amount of bubbles about once a second. This is accompanied by an annoying sound with the same pulsing frequency. If I put my ear to the pipes I can hear air rushing through one of them.

    I am not sure what's causing this. The system must be drawing air in from somewhere. Does this mean I have a leak in my system somewhere? If so, how can I locate it and patch it? Possibly the dial is not closing itself completely?

    Thanks for your advice!

  2. Back To Top    #2
    Mod Squad JVTrain's Avatar
    Join Date
    Feb 2014
    Location
    Central Minnesota
    Posts
    5,079

    Re: Older spa, air bubbles won't completely turn off.

    You could have a leak in your piping or more likely a leaky valve that's not able to completely close. I would take apart the valve and inspect it for obvious signs of wear.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

  3. Back To Top    #3

    Join Date
    Sep 2015
    Location
    Oregon
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    2

    Re: Older spa, air bubbles won't completely turn off.

    Thank you for the tip. I'll check it out tonight

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