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Old 02-15-2016, 03:45 PM   #46
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do yourself a favor and have his plumber run new waste and waters on the back wall, so you can just slide the vanity in place and all will line up and look nice...trying to balance and lift the vanity onto the water lines and then lining up the drain line on the back wall then playing with all the fittings..by the time you get done with the aggravation and cost of fittings..it would be cheaper to do it right..
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Old 02-15-2016, 06:05 PM   #47
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Here are pictures of my current wall "stub out"
Actually, the new left sink will be approximately centered on the red valve
So it means left sink ~5" on the left of the drain pipe, and the right sink will be 37" on the right....
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bathroom drain stub-out what to do if glued-img_1338.jpg   bathroom drain stub-out what to do if glued-img_1339.jpg  
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Old 02-16-2016, 12:31 PM   #48
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Quote:
Originally Posted by WhatRnsdownhill View Post
the correct way would to open the wall and use a double tap TY so both traps are properly vented ...now you can sneak by by using AAVs on each trap and connecting to the pipe coming out of the wall...
Would be able to draw a quick sketch showing how it should look like, and where the AAVs should be installed?
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Old 02-16-2016, 01:08 PM   #49
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Quote:
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Would be able to draw a quick sketch showing how it should look like, and where the AAVs should be installed?
for which way? behind the wall piping or 1 pipe split into 2 in the cabinet bases?
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Old 02-16-2016, 01:22 PM   #50
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For the 1 pipe split into 2 under cabinet
However, I would not mind to also see how it should be inside the wall....!!
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Old 02-16-2016, 01:25 PM   #51
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For the 1 pipe split into 2 under cabinet
However, I would not mind to also see how it should be inside the wall....!!
ok, but when I get a chance, I have to draw and scan it to post...
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Old 02-16-2016, 01:27 PM   #52
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Cool, thanks
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Old 02-16-2016, 01:41 PM   #53
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ok here it is if you can read hieroglyphics..lol the top is in the wall and the pipes to the traps would come through wall into vanity, the vent would be common to both sinks, the bottom pic a single pipe comes into the vanity and is split with the double ty with the AAV as the common vent to the sinks, the vent in the wall can stay and just hand out...ok pic didnt post hold on..
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Old 02-16-2016, 01:47 PM   #54
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...........................................
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Old 02-16-2016, 02:38 PM   #55
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I printed out your sketch, and I can read everything……no problem
So for the “2 sinks into 1 line” solution:
In my case, the drain line coming out of the wall will be close to the left sink (approx. 5” from the center of the sink to the center of the drain)
Thus the distance from the drain to the right sink will be approximately 37”
Is this a problem to have the left sink so close to the main drain pipe?
It also means the left sink and its p-trap will be very close to the current in-wall vent line. Should I not put the AAV closer to the right sink (and still as high as I can in the cabinet)?
And finally, what is the ideal height of both p-traps compared to the drain line coming out of the wall?
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Old 02-16-2016, 03:14 PM   #56
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Quote:
Originally Posted by french_guy View Post
I printed out your sketch, and I can read everything……no problem
So for the “2 sinks into 1 line” solution:
In my case, the drain line coming out of the wall will be close to the left sink (approx. 5” from the center of the sink to the center of the drain)
Thus the distance from the drain to the right sink will be approximately 37”
Is this a problem to have the left sink so close to the main drain pipe?
It also means the left sink and its p-trap will be very close to the current in-wall vent line. Should I not put the AAV closer to the right sink (and still as high as I can in the cabinet)?
And finally, what is the ideal height of both p-traps compared to the drain line coming out of the wall?
you can offset the pipe coming out of the wall with a 45 away from the closer sink to give you room to work and just spin the double ty so the 2 ends for the traps are running parallel to the wall..
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Old 02-16-2016, 05:41 PM   #57
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The TY should be installed vertically, right? So with a 45 going horizontally and to the right, how do I install the TY vertical? With a 90 at the end of the 45?
The TY should be parallel to the wall, with both ends going left and right toward the p-traps, with he middle port receiving the AAV......Is that correct?
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Old 02-16-2016, 05:50 PM   #58
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the 45 would be at the wall pointed away from closest sink, the 45 goes into a 90 and the double tap ty on top of 90 and AAV on top of dty..
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Old 02-16-2016, 06:01 PM   #59
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Got it .....(I think !)
So starting from the pipe that comes out of the wall:
1) 45 going away from the closest sink (so toward the right) and horizontally
2) 90 attached at the end of the 45, and going up
3) TY installed on top of the 90, both "ears" going left and right (so parallel to the wall)
4) AAV install on the center port, as high as possible
5) both "ears" going to the p-traps

Hoping the arms going to the p-traps won't be too high.....
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Old 02-16-2016, 06:57 PM   #60
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correct and just try to get a slight pitch on all the pipes going back to the pipe coming through the wall..
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