Threaded pipe nipple problem.

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Old 02-24-11, 05:28 AM
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Threaded pipe nipple problem.

All right guys, got another question for you. Since I can't find it on here, which probably means I will be proven stupid, here goes. Got my shower surround CBU'd the other day. Just about the put up by Schluter kit, but realized something. I didn't put the pipe nipples in for my hand shower and body sprays. The rain showerhead is going to use a custom pipe that will come from the wall and bend up, so thats not a problem to tighten.

My question is, how do I securly tighten the nipples if the cbu is already up? Any thoughts? I thought I've seen plumbers put in temp nipples just so people can locate where to cut holes in their drywall or cbu, but then take em out to put finished ones in.
I hope the answer isn't to take the cbu down.

The system is a Moen IO digital system. instructions say 1/2" NPT that is 1/2" to 5/8" protruding out from the finished wall. The drop ell's, and drop tee's are pretty much flush with my studs. Any help would be appreciated.
 
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Old 02-24-11, 05:52 AM
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You could use a pipe wrench with the jaws wrapped but I would use a strap wrench. There's less chance of messing up the finish on the pipe nipple.
 
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Old 02-24-11, 05:55 AM
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Ha, I never even thought of that! I was thinking to myself, "Well, what the hell am I gonna do now? I can't get a pipe wrench back there. I can't just tape the threads and them wrap on em with a pipe wrench. Normally i find if I do that, the tape just spins, or I kink the pipe or bend it outta round. I mean normally what do people do, get that all set up before the wall goes in?
 
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Old 02-24-11, 02:55 PM
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Yeah, all the piping is done well before you drive your first screw into the cbu. They are capped off and pressure tested on top of all that. You don't want a leak behind your tile. Strap wrench pretty much does the job on a finished surface.
 
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