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Old 12-13-2016, 11:41 PM   #16
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Re: Relocating Kitchen Drain - Help


Don't see anything there that is flammable but have bucket of water near by just in case.
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Old 12-14-2016, 04:18 AM   #17
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Re: Relocating Kitchen Drain - Help


Thanks hkstroud for all your help. I'll give it a shot tonight.
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Old 12-14-2016, 08:18 PM   #18
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Re: Relocating Kitchen Drain - Help


Nothing really to report back tonight. Progress is slow. I spent most of the time knocking down bits of the plaster and removing some of the wooden slates to prep for the big 180 deg turn. Not sure how to cut the pipe first. I think I'll attempt with a oscillating saw and if not, sawzall.
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Old 12-14-2016, 08:46 PM   #19
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Re: Relocating Kitchen Drain - Help


Sawsall, oscillating saw, jig saw, 4" grinder or even hacksaw it nothing else.
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Old 12-15-2016, 05:47 AM   #20
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Re: Relocating Kitchen Drain - Help


Thanks. Before I cut this, I just realized I'm going to run into jack studs under the window during the reroute. Considering the spacing between the exterior and interior wall is ~2" deep, I'd lose most of the support if I notch out a path for the vent pipe. Any suggestions on how to solve this one?
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Old 12-15-2016, 09:14 AM   #21
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Re: Relocating Kitchen Drain - Help


What size is the existing vent pipe? Should be 1 1/2". Wall should be a 2x4 wall meaning 3 1/2" between wall surfaces. No real weight on jack studs.

Only way to avoid drilling or notching jack studs would be to come up from the basement with the drain pipe. Stub it out and after cabinets are set, install an AAV.
(Air Admittance Valve). Assuming an AAV is approved in your location.

If you take that approach you would not need to rotate the tee. You would only need to cap it off.

Don't quote me but I believe there are U shape metal plates you can use to reinforce a 2x4 in such situations.
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Old 12-15-2016, 09:24 AM   #22
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Re: Relocating Kitchen Drain - Help


Yes there is
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Old 12-15-2016, 09:41 AM   #23
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Re: Relocating Kitchen Drain - Help


Thanks. I'm going to do this proper and attempt to your rotate the tee tonight. I'll open up the wall below the window to see what I'm dealing with. It might be strapping and the window resting on a brick ledge
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Old 12-15-2016, 08:05 PM   #24
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Re: Relocating Kitchen Drain - Help


Boom! I got the pipe turned. It wasn't that difficult. Now I need to run it in the wall.

The spacing between my exterior and interior wall is a tight 2". Will ABS or PVC have adapters with flanges less than 2"? I am worried I won't be able to run this through the wall.

I don't need to cover the vent pipe with drywall, but I'd like it to be flush with my cabinets. Cutting a horizontal strip off an IKEA MDF cabinet is pretty much asking for trouble.

Thanks for the advice hkstroud!
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Old 12-15-2016, 08:40 PM   #25
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Re: Relocating Kitchen Drain - Help


Congratulations.

That vent pipe should be 1 1/2' or 1 1/4". The drain pipe (what remains of it) is probably 1 1/2" or 2". We will reduce it to 1 1/4". That's 1 3/8 outside diameter.

Tell me what size the drain pipe is? Also what size is the vent pipe. Open up the wall for the new vent pipe so we can see what we have to work with.

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Old 12-15-2016, 09:00 PM   #26
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Re: Relocating Kitchen Drain - Help


The vent pipe is 1-1/4". That is what i read off the fitting. The drain pipe is 1-1/2". The sanitee is a reducer.

I'll be opening up the wall Saturday morning.
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Old 12-16-2016, 09:16 AM   #27
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Re: Relocating Kitchen Drain - Help


I would still turn that last picture down for a code violation.

905.5 Height above fixtures. A connection between a vent pipe and a vent stack or stack vent shall be made at least 6 inches (152 mm) above the flood level rim of the highest fixture served by the vent. Horizontal vent pipes forming branch vents, relief vents or loop vents shall be at least 6 inches (152 mm) above the flood level rim of the highest fixture served.

In english that means the horizontal portion of the vent under the window must be 6 inches above the kitchen sink to turn horizontal.

Looking at what you have open up the wall cut the left drain tee completely out and fix with proflex copper to plastic adaptors.

Now cut in a tee on the right vent for the sink below run a drain through the wall to the sink.

Now go down stairs remove that drain to the basement sink.
Repipe the basement sink to the left old drain now vent .

Your done.
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Old 12-16-2016, 09:28 AM   #28
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Re: Relocating Kitchen Drain - Help


We are going to have to connect our new PVC vent pipe to the old copper drain pipe out of the tee that you just turned.
To do that we are going to use a shielded rubber coupling and 1 1-1/2 long PVC street 90. We could try to use 1-1/4 PVC for the new vent pipe to go through the wall but I think we my get into trouble. 1-1/4 PVC is not used as much as 1-1/2".
I think a 1-1/4 rubber coupling will fit over the 1-1/2 copper but I'm not sure. If it will, we could use it and a 1-1/4 PVC street 90. Then run 1-1/4 PVC for the vent pipe.
If it won't, we will have to use 1-1/2" shielded rubber coupling and a 1-1/2 long PVC street 90.
There may be a 1-1/2 to 1-1/4 PVC bushing but I doubt it. The walls of such a bushing would only be 1/16" thick.
So we will probably have to use 1-1/2 PVC for the new vent pipe. Shouldn't make much difference getting through the wall.

So, suggest that you first heat that drain pipe and with a wet cloth wipe away all solder below the 90. Heat the pipe a few inches below the 90 and wipe as soon as the solder begins to run. Don't over heat, the pipe will fall out of the tee.
You could cut off a few inches of the pipe and take it with you to see if a 1-1/4 coupling will fit over it.
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Old 12-16-2016, 09:39 AM   #29
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Re: Relocating Kitchen Drain - Help


Quote:
. A connection between a vent pipe and a vent stack or stack vent shall be made at least 6 inches (152 mm) above the flood level rim of the highest fixture served by the vent
I know but I don't care. We could take that copper 90 off and use the stub out with rubber coupling to do that (or come close). But I am afraid that with the lack of experience soldering we will get into trouble.
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Old 12-16-2016, 10:10 AM   #30
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Re: Relocating Kitchen Drain - Help


Thanks guys for all the support and info.

I am pretty decent at sweating/soldering 1/2" pipe. I just haven't dealt with such a larger diameter pipe before. Lots of flux and sanding usually works well for me.

As for the vent pipe, I can run it across the top. I feel that the next step will be to open a path under the window to turn down the vent pipe to meet the future drain.

I believe you guys are suggesting that I remove the elbow and stub. That shouldn't be a problem. I think I will be able to solder a piece of 1-1/4" pipe into the tee too. This will allow us to use a rubber coupler to convert into ABS.

As for the drain... I don't think I'm there yet. :P Baby steps please!
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