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Old 02-18-2013, 11:12 AM   #1
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Drywall Quest. - Tub/shower traps below joist level


I need to do a moderately large ceiling patch below an upstairs bathroom, which will cover traps for the shower and tub. I just realized that the traps extend below the bottom of the joists by about 1/4". I'm trying to figure out the best way to deal with this.

Originally, on at least one of the traps, I can tell that the drywall panel was simply placed over it and the 1/4" hump was not noticeable, but this sounds like a bad idea for a patch.

I was thinking that I could take a Dremel and remove some of the drywall material from the backside, leaving spaces for the traps, and make sure that the ceiling side is mudded over to ensure adequate strength.

How would you guys handle this? Thanks!

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Old 02-19-2013, 10:46 PM   #2
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Drywall Quest. - Tub/shower traps below joist level


I'd use 1"x2"'s as furring to lowere joists 3/4"

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Old 02-20-2013, 07:30 AM   #3
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Drywall Quest. - Tub/shower traps below joist level


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I'd use 1"x2"'s as furring to lowere joists 3/4"
Thanks for the reply, but this is a 2' x 4' patch in the middle of a large space... How would you handle it in this situation?
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Old 02-20-2013, 08:19 AM   #4
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Drywall Quest. - Tub/shower traps below joist level


I'd be taking a look at the tail piece to see if it could be shortend a little bit.
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Old 02-20-2013, 09:02 AM   #5
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Drywall Quest. - Tub/shower traps below joist level


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Originally Posted by joecaption View Post
I'd be taking a look at the tail piece to see if it could be shortend a little bit.
Hey Joe, sorry for my ignorance but can you please explain what you mean by "tail piece"?

Are you referring to the plumbing? If so, I've considered this and there really isn't much play there...
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Old 02-20-2013, 10:13 AM   #6
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Drywall Quest. - Tub/shower traps below joist level


Posting a picture would sure help. We can not see what you have there no matter how hard we squint.
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Old 02-20-2013, 03:20 PM   #7
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Drywall Quest. - Tub/shower traps below joist level


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Thanks for the reply, but this is a 2' x 4' patch in the middle of a large space... How would you handle it in this situation?
I agree with Joe, the tail piece of the trap could probably be cut 1/2"
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Old 02-20-2013, 04:03 PM   #8
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Drywall Quest. - Tub/shower traps below joist level


Ok, i'll take another look at this tonight when I get home... But let me ask: is my idea of Dremelling out a bit of the drywall material from the back side that crazy an idea? I'll experiment with a piece of scrap to see how it works, but isn't there something to be said for not messing with a sealed pipe joint that has never leaked, and which is going to be inaccessable behind drywall?

Thanks! I really appreciate all the input...
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Old 02-20-2013, 05:28 PM   #9
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Drywall Quest. - Tub/shower traps below joist level


you could just eleminate all concerns by installing an access panel.
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Old 02-20-2013, 09:51 PM   #10
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Drywall Quest. - Tub/shower traps below joist level


Quote:
Originally Posted by coupe
you could just eleminate all concerns by installing an access panel.
That's the 2nd great idea.

It's his ceiling, in his house, not the garage.

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Old 02-21-2013, 07:40 AM   #11
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Drywall Quest. - Tub/shower traps below joist level


OK, took another look at it last night and I can confirm that shortening the tail piece is not a viable option... Goes from a solid brass tub drain straight into the P trap. Also no chance that my wife will accept an access panel in the middle of the ceiling in this highly visible part of the house...

So this seems to bring us back to how to modify the drywall to accommodate this... Any opinions on removing some of the material from the back of the patch? Another thought I had was to cut out a slot where the trap is and then tape/mud over it, but this option seemed less appealing... Thoughts? Has anyone ever dealt with this before?
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Old 02-21-2013, 09:12 AM   #12
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Drywall Quest. - Tub/shower traps below joist level


Just try your idea. If it doesn't work, tear it out and start over. Drywall and compound is cheap.
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Old 02-21-2013, 08:34 PM   #13
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Drywall Quest. - Tub/shower traps below joist level


Quote:
Originally Posted by djlandkpl View Post
Just try your idea. If it doesn't work, tear it out and start over. Drywall and compound is cheap.
Thanks DJL, I guess that's what I'll do! Just thought that someone might have encountered this before, or was curious what a pro would do in the situation...

Anyway, I appreciate all the responses!
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Old 02-21-2013, 08:57 PM   #14
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Drywall Quest. - Tub/shower traps below joist level


Isn't you P-trap and waste pipe copper?

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Old 02-21-2013, 09:02 PM   #15
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Drywall Quest. - Tub/shower traps below joist level


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Isn't you P-trap and waste pipe copper?

Jaz
No, I think it's PVC...

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