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-   -   Drywall Quest. - Tub/shower traps below joist level (http://www.diychatroom.com/f101/drywall-quest-tub-shower-traps-below-joist-level-172264/)

ARB 02-18-2013 10:12 AM

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!

coupe 02-19-2013 09:46 PM

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

ARB 02-20-2013 06:30 AM

Quote:

Originally Posted by coupe (Post 1120745)
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?

joecaption 02-20-2013 07:19 AM

I'd be taking a look at the tail piece to see if it could be shortend a little bit.

ARB 02-20-2013 08:02 AM

Quote:

Originally Posted by joecaption (Post 1120883)
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...

joecaption 02-20-2013 09:13 AM

Posting a picture would sure help. We can not see what you have there no matter how hard we squint.

coupe 02-20-2013 02:20 PM

Quote:

Originally Posted by ARB (Post 1120864)
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"

ARB 02-20-2013 03:03 PM

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...:thumbsup:

coupe 02-20-2013 04:28 PM

you could just eleminate all concerns by installing an access panel.

JazMan 02-20-2013 08:51 PM

Quote:

Originally Posted by coupe
you could just eleminate all concerns by installing an access panel.

That's the 2nd great idea. :huh:

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

Jaz

ARB 02-21-2013 06:40 AM

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?

djlandkpl 02-21-2013 08:12 AM

Just try your idea. If it doesn't work, tear it out and start over. Drywall and compound is cheap.

ARB 02-21-2013 07:34 PM

Quote:

Originally Posted by djlandkpl (Post 1121583)
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!

JazMan 02-21-2013 07:57 PM

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

Jaz

ARB 02-21-2013 08:02 PM

Quote:

Originally Posted by JazMan (Post 1122013)
Isn't you P-trap and waste pipe copper?

Jaz

No, I think it's PVC...


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