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Thread: Venturi spa jet (no blower) not blowing solution

  1. Back To Top    #1

    Join Date
    Oct 2012
    Lithia (Tampa), FL

    Venturi spa jet (no blower) not blowing solution

    I have been fighting a lack of bubble from my in-ground spa for a couple of months now. I have read more than two dozen post of people that have the same symptoms as me:

    -Jets stopped blowing bubbles out of the blue
    -When you lower the spa level the jets would work
    -If you blew air into the air intake the jets would work
    -Jets have plenty of water flow, just no bubbles

    Many people indicated they had repair personnel come out, none reported their problems were fixed. The most common suggestion was to add a blower to the system.

    Well I finally caught a break in my diagnosis. There was an odd piece of PVC sticking out of one of the nozzles the other day. Pulled it out and after doing a little digging found that it was a Venturi Tee Nozzle. It appears that due to age and heat it deformed the tabs that hold it in place. I ordered new ones (less than $2 each) and replaced the missing one. The nozzle sprang to life shooting perfect bubbles. Replaced the other three and the spa is 100% again

    Even though I still had three in place the deformation allowed water to flow around the Venturi Tee Nozzle killing the venturi effect. This made it where it didnot have enough suction to pull in the air. Hope this helps someone else. Picture shows deformed tabs (center) and out of round intake (left).
    Attached Images Attached Images
    19k gal Inground freeform with ~7' dia spa (spillover)
    Hayward 2 hp (filter/spa), Hayward 2 hp (waterfall)
    Hayward DE filter Hayward/Goldline/Aqua Logic controller SWG
    Hayward Navigator pool cleaner, Pool in screened room with paver deck
    Solar heat and Hayward H350 natural gas heater

  2. Back To Top    #2
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Midland TX

    Re: Venturi spa jet (no blower) not blowing solution

    I wanted to say welcome to the forum and sorry no one has answered. Nice of you to post the information to help someone else.

    Hope you hang around and enjoy the forum.
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

  3. Back To Top    #3
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Venturi spa jet (no blower) not blowing solution

    Great post. Thanks!

    It's refreshing when you find and can actually fix a problem. Having the photographic evidence is great as well.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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