Min/Max projection on a Kohler Valve

Discussion in 'Shower & Bathtub Forum & Blog' started by noreast, Jan 27, 2009.

  1. noreast

    noreast New Member

    Joined:
    Dec 13, 2008
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    Publisher of a sportfishing magazine and website
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    Long Island, NY
    Hello All!

    Great board here for a wanna be DIY like myself ;)

    I'm installing a Kohler k-679 Thermostatic Valve and I'm not sure where to set it? The diagram below is in the installation manual but I'm not sure where it should be set so that the trim mounts flush to the wall.

    I'll be using 1/2 cement/backer board and then a 1/4 tile to finish.

    Any suggestions as to whether it should be set to Min or Max?

    Thanks for any advice.

    George
     

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  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
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    Retired Systems engineer for defense industry.
    Location:
    New England
    The easiest thing to do is install the trim on the valve before you mount it and see how much you like the handle to stick out into the shower. If the valve is mounted so it sticks too far into the shower, you won't be able to get the trim to seal (it will still flop around after you've bottomed out the screws). If it is burried too far in the wall, you won't be able to attach the trim at all (screws won't be long enough, and/or there won't be enough sticking out to attach the handle at all). As long as the finished wall falls between the min/max lines, you can attach the trim and seal things, but it's your decision on how well you like it sticking out, or close to the wall. Personally, I don't like it sticking out all the way.
     
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  4. C NUMB

    C NUMB Plumbing Contractor

    Joined:
    Jan 13, 2009
    Occupation:
    plumber
    Location:
    NPR, FL
    I always split the Max/Min.

    [​IMG]


    That will give you a 1/2" to play with. The backer board and tile with thinset with probably be 7/8" to 1" thick.
     
  5. noreast

    noreast New Member

    Joined:
    Dec 13, 2008
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    Publisher of a sportfishing magazine and website
    Location:
    Long Island, NY
    Thanks for the advice - I greatly appreciate it!
     
  6. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    valve

    IF you mess up and do not get it installed between the two dimensions, you could have a problem. If it is too far out, there are seldom "shallow installation" accessories so you have to jury rig something and live with it. Many manufacturers, but not all, make "deep installation" extensions which will usually bail you out. In most cases setting at the mid point between the two is the safest, since it accomodates both a thinner or a thicker wall than originally anticipated or specified.
     

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