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Old 04-03-2008, 07:13 AM   #1
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New Shower Valve Installation

This site is a treasure trove of information. I have spent more hours on here than I have in my bathroom doing the renovation.

My question: I am installing a corner shower unit where a bathtub used to be. So, I've ripped it all down to the studs and I've also removed the old black iron plumbing with CPVC. I have a Moen one-handle shower valve that I'm attempting to install at this point. The instructions are very confusing in terms of depth placement of this valve. There is a cylindrical piece they call a "plaster ground" that the escutcheon will mount to.

In the end, do I want this flush with my finished wall, or protruding some amount?

The instructions say that the "front face of the plaster ground is a reference point for a nominal 5/8" thick finished wall with the supply piping centerline nominal 1 11/16" from the face of the stud." The problem with this is that the helpful picture shows the plaster ground to be the same thickness as the wall (one would assume 5/8"), but the piece is in fact 7/8". Oh, and I'm using 1/2" dry wall so an adjustment is in order anyways. And I'm not sure if I need to account for the shower unit at all.

Any advice is greatly appreciated!



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Old 04-03-2008, 08:11 AM   #2
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The face is flush to finish wall ideally, but it can be anywhere within the thickness of the guard and still be ok.


Fix it right the first time, so you won't have to fix it a 2nd time.

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