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Old 02-21-2016, 07:17 PM   #76
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Quote:
Originally Posted by french_guy View Post
Yeah, I know....
1 more question: Is it OK to cap a 1 1/2" drain line - inside a wall - with this:
http://www.homedepot.com/p/1-1-2-in-...-101/100372302

Or I have to go with the glued PVC cap?
why would you want too?????
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Old 02-21-2016, 07:43 PM   #77
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Because I'm decommissioning an old vanity.....
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Old 02-22-2016, 10:01 AM   #78
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Actually, I want to cap that one off (inside the wall)
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Old 03-03-2016, 05:38 AM   #79
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Anybody?
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Old 03-03-2016, 07:21 AM   #80
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Yes, you can cut and cap that inside the wall---Please use a PVC cap --primed and glued (solvent weld)---it is cheaper than a rubber cap and eliminates the possibility of a failure--
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Old 04-20-2016, 08:19 PM   #81
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Re: bathroom drain stub-out what to do if glued


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Originally Posted by ben's plumbing View Post
wow ..just open the wall ..not a big deal.. looks like you already have an 1 1/2 vent ..so do it the better way....sorry..
OK, I had to put on hold this project for a while
Old vanity has been removed, and floor has been tiled
The 2 pieces of blue tape represents the axis of the sinks
The new vanity (combination of IKEA kitchen cabinet 96 long: 15 + 24 +18 + 24 +15) will be centered over the heat register

How should the waste line be modified to install 2 sinks (will be inside the wall)

Thanks
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Old 05-10-2016, 08:27 AM   #82
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Re: bathroom drain stub-out what to do if glued


I cut open a portion of the wall. Still need to cut 1 more cavity on the right, but it gives an idea.
How should I proceed now? Do i use this:
http://www.homedepot.com/p/1-1-2-in-...D112/100678015
Once glued on the bottom of my existing drain (instead of the Tee), how do I attach it to the vent on the top?
My wall is 2x4 studs....Should I use stud shoes on the 2 studs I will have to drill or notch on the right side?
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Old 05-10-2016, 02:27 PM   #83
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Re: bathroom drain stub-out what to do if glued


Wow that 8 inch deep ptrap will work just great.... NOT
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Old 05-10-2016, 02:38 PM   #84
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Re: bathroom drain stub-out what to do if glued


What do you mean???
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Old 05-10-2016, 08:03 PM   #85
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Re: bathroom drain stub-out what to do if glued


Quote:
Originally Posted by french_guy View Post
I cut open a portion of the wall. Still need to cut 1 more cavity on the right, but it gives an idea.
How should I proceed now? Do i use this:
http://www.homedepot.com/p/1-1-2-in-...D112/100678015
Once glued on the bottom of my existing drain (instead of the Tee), how do I attach it to the vent on the top?
My wall is 2x4 studs....Should I use stud shoes on the 2 studs I will have to drill or notch on the right side?
You need to put the fitting in the vertical pipe. Then drill and run the trap arms to the desired sink locations. Use nail guards when drilling within 1.5" of the stud surface.

To throw a wrench into your plan- The code I use will not accept the cross you picture and I could only put 1 lav on 1.5" pipe. So I suggest you research what your local code allows- just to be sure....
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Old 05-10-2016, 08:59 PM   #86
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Re: bathroom drain stub-out what to do if glued


I really don't see how i could replace that 1.5" drain by a 2"......so does that mean i'm screwed?
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Old 05-10-2016, 09:13 PM   #87
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Re: bathroom drain stub-out what to do if glued


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I really don't see how i could replace that 1.5" drain by a 2"......so does that mean i'm screwed?
No, it just means that you're trying to drain 2 lavs into a pipe typically sized for 1.
The 1.5" cross will allow some water to wash across the fitting towards the other sink too.

What I'd do is use 2- 1.5" san tees stacked on top each other and pointed in opposing directions. This will affect the trap height at each lav though- one will be a couple inches higher- find a happy medium and it should work
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Old 05-11-2016, 05:33 AM   #88
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Re: bathroom drain stub-out what to do if glued


Great, thanks
The sink on the left is very close to the current vertical drain. The one on the right will be farther, something like 32"
Is there an angle on the horizontal hub? I will put the sanitary T for the right sink on the bottom, and the left on the top
Then that angle (over the 36") might help to compensate the height difference of the stub-out.....

By the way, gluing the 1st san Tee on the vertical drain line is easy, and the 2nd san Tee on top of the 1st one as well....But how do I connect the vent back to the top of the 2nd Tee? It would need to be lifted up, then down to slide inside the hub, but I guess it doesn't move, right?

Last edited by french_guy; 05-11-2016 at 05:51 AM.
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Old 05-11-2016, 06:59 AM   #89
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Re: bathroom drain stub-out what to do if glued


Pitch the pipe at 1/4" per ft. That will gain you 3/4"

When you cut the vertical pipe, there is a good chance it will lift enough. If not, you should be able to find a repair coupling- it doesn't have an interior pipe stop. So it can slide up the pipe, then back down on the other piece when assembling
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Old 05-11-2016, 07:26 AM   #90
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Re: bathroom drain stub-out what to do if glued


Is this repair coupling in rubber, and attach with clamp?
Or is it PVC to be glued? Might not be easy to glue on top and bottom at the same time.....
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