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Thread: Replacement mixer valve body too big for wall space.

  1. #1
    DIY Junior Member lisa99's Avatar
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    Default Replacement mixer valve body too big for wall space.

    Hi guys,

    First post, so be gentle I'm sure this will be a question that six months from now I'll look back and wonder how I could ever have been so dumb! :-)

    I'm wanting to replace 1980s era PF bath/shower fixtures and mixer valve with new Delta parts. The wall is open and I know how to cut out the old valve and solder in a new one, but what I can't figure out is how to find a mixer valve body that will fit in the available wall space.

    It's 2x4 framing that can't be made bigger. The old valve body is 3" but the new Delta unit has a valve body that is 5 1/2"....so...how do I find a mixer valve that will fit in a 2x4 wall opening?

    Thanks...I know it's a dumb question, but after hours of research on the internet I had to cry Uncle and ask the experts.

    Thanks for your help!
    Lisa

  2. #2
    Homeowner geniescience's Avatar
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    are you sure you are holding it the right way? Why would a manufacturer make a device that took up 6 inches of depth? When I installed my thermostatic valve the biggest space needed was side-to-side, not front-to-back, and it was a big 3/4" device.

    since i am not a Delta person, that is all i can say to help you out.

    david

  3. #3
    Customer Service Manager Plumbing Wholesale Peanut9199's Avatar
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    I know Grohe is 6-11/16" from side to side but only 2-7/8" high.
    but thier pressure balanced is 3-3/4" wide and 4 1/2" high.

  4. #4
    DIY Junior Member lisa99's Avatar
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    Knew I was going to eventually have a "DOH" in this thread.

    I was measuring the full width rather than to the edge of the part that sits flush with the wall...thanks you guys for answering; it prompted me to re-read the installation instructions more closely.

    Now let's just hope I don't burn the house down as I solder the parts (yes I have a thermal blanket and will put a wet towel over the joints that I don't want to melt!!

    Thanks again,
    Lisa

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