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  1. #1
    Nick Welty's Avatar
    Nick Welty Guest

    Default Anybody know what this is??

    This is a picture of the top fittings of a hydro massage pump under a large corner tub. I have seen many pumps before, but none with this "add-on" contraption. It would appear to be some sort of hook-up for a filter or cleanout attachment. Any ideas?

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  2. #2
    A.D. Miller's Avatar
    A.D. Miller Guest

    Default Re: Anybody know what this is??

    Who is the tub manufacturer?


  3. #3
    Jeff Remas's Avatar
    Jeff Remas Guest

    Default Re: Anybody know what this is??

    Wow, look at the "do not wave hello" sign. Must be a strict factory where they assemble the parts.


  4. #4
    Join Date
    Mar 2007
    Location
    Plano, Texas
    Posts
    4,170

    Default Re: Anybody know what this is??

    Certified WAG - air admittance valve to allow lines to be self draining.

    Jim Luttrall
    www.MrInspector.net
    Plano, Texas

  5. #5
    Join Date
    Mar 2007
    Location
    New Mexico
    Posts
    1,258

    Default Re: Anybody know what this is??

    I was guessing air admittance for the pump, to allow air in for the jets and bubbles. I see larger ones on outdoor hot tubs.

    Jim Robinson
    New Mexico, USA

  6. #6
    Join Date
    Mar 2007
    Location
    Plano, Texas
    Posts
    4,170

    Default Re: Anybody know what this is??

    I see two questionable items, the clear valve on top of the line connections and the tube strapped to the lines. The top could be a type of AAV for drainage and with the tube being the inlet for the air to feed the jets. Again CWAG.

    Jim Luttrall
    www.MrInspector.net
    Plano, Texas

  7. #7
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,243

    Default Re: Anybody know what this is??

    Guys, that would not be an AAV (air admittance valve) as those are specialized things for special purposes, and they only work on non-pressurized systems.

    That would be (I suspect) an atmospheric vacuum release backflow preventer.

    That would be to allow air into the system.

    Referring to the clear plastic thing at the top.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  8. #8
    Nick Welty's Avatar
    Nick Welty Guest

    Default Re: Anybody know what this is??

    Well.... okay. But the red tip of the strapped hose appears to fit into valve atop the pump like some sort of add on assembly just not hooked up.


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