PVC Splicing Question

[BJ42LX]

I'm changing out the sink base cabinet in my kitchen.

The drain is plumbed with PVC. It's a 1.5" Y with clean-out (double sink, never used the clean out).

Problem is the Y is cemented to the wall connection and there's only about 1/4" of straight pipe showing. I'll have to cut the connection to get the old cabinet out and the new one in.

Then what do I do?

I'll have a nearly flush piece of PVC against the wall with no way to connect to it. Suggestions?

 

[metaleltr]

Cut the pipe, use Thisto cut the pipe out of the fitting. Clean the fitting up a little, new longer piece of pipe and glue everything back together

 

[finn]

Probably have to open up the drywall. If you want it to look nice cut the reok back to the stud centerline and insert backer board along the cut at the top and bottom, do the pvc repair, cut a new sheetrock patch, screw along all 4 sides, tape and mud.

If the cabinet has a back, or it's a rental, just say screw it and leave a big hole.

Bet that gets a few retorts!

Edit: Cool repair tool!

 

[Leaflessshadetree]

Google PVC pipe extender.

 

[HoosierMark]

RE: metaleltr response: I watched a plumber use that tool to cut two fittings out this past week. Very simple. Only issue was, he was pushing it hard into the fitting and needed to bend the edges out a little as it was bending inward and cutting a smaller circle. Just keep it centered and in a few minutes you wil have a pile of pvc shavings and a fitting ready to use again.

 

[raddksn]

That IS a cool tool! However I have had success cutting the fitting off leaving the hub still attached, carefully slice the hub lengthwise in two or three places down to the pipe and pri off the pieces. Then sand to clean up the pipe stub.

 

[NCMUSTANG]

just like Raddksn said.. leave the hub, take a small wood chisel and pry out the remaining pieces and clean up with sand paper.

 

[NCMUSTANG]

just like Raddksn said.. leave the hub, take a small wood chisel and pry out the remaining pieces and clean up with sand paper.

 

[pepi]

If I were to do this think I would make my first cut across the seam, then remove the collar, of course it will not just slip off. You may get in there and find out it is not completely glued the full width. It would at least give you a second chance.

Rereading you're replacing the cabinet and what I see in the rear is the back of the cabinet. Then I would cut where the arrows are pointing. Once the cabinet has been pulled out go to work on the collar, should have plenty of room to do that.

That auger thing looks like a good idea but risky, do not see how that would stay centered. If it gets off center and takes out the side of the pipe you are trying to save, bigger problem.

 

[metaleltr]

If I were to do this think I would make my first cut across the seam, then remove the collar, of course it will not just slip off. You may get in there and find out it is not completely glued the full width. It would at least give you a second chance.

Rereading you're replacing the cabinet and what I see in the rear is the back of the cabinet. Then I would cut where the arrows are pointing. Once the cabinet has been pulled out go to work on the collar, should have plenty of room to do that.

That auger thing looks like a good idea but risky, do not see how that would stay centered. If it gets off center and takes out the side of the pipe you are trying to save, bigger problem.

The round disk in

front of the cutter keeps it centered. I have never used one, always thought it may come in handy though

 

[Tim The Tool Man]

That tool would be fine but for $30 to $40 for a one time use, I'd pass. Simply cut the pipe at the hub and buy an $8 Fernco fitting and be done with it.

 

[jhelrey]

If it was my project, I would cut a 10x10 hole in the sheet rock, use a cable cutter and cut out the piece completely. Glue up a new one to your liking and install it. Put sheetrock back and do a quick tape/mud job since it will get covered up by the vanity.

Or you could trim the sheetrock a smidge so I can put a new fitting on with threads. Just make sure you cut the back of the new vanity close or even use a fancy trim ring they sell.

Don't over think it.

 

[Hpozzuoli]

If it was my project, I would cut a 10x10 hole in the sheet rock, use a cable cutter and cut out the piece completely. Glue up a new one to your liking and install it. Put sheetrock back and do a quick tape/mud job since it will get covered up by the vanity.

Or you could trim the sheetrock a smidge so I can put a new fitting on with threads. Just make sure you cut the back of the new vanity close or even use a fancy trim ring they sell.

Don't over think it.

Agreed. It's hidden so cut the rock and do it right. It's easy to patch after and out of sight. You make everything to your liking at that point.

 

[BJ42LX]

These are all good suggestions. Thanks for the quick responses guys.

Don't over think it.

After staring at it for 20 minutes I'm going with the Neanderthal approach: I'm going to leave the existing plumbing in place cut a 3x12" window in the back of new new cabinet. The cabinet will slide right over the existing plumbing and I can easily make a 4x13" escutcheon patch from some white hard board and tack it in place. I'm the only one who's ever that deep under the sink so it will be more than pretty enough.

 

[joe_padavano]

Geeze, this is PLASTIC tubing. Cut it off flush with the fitting in the wall, then use a Dremmel with a cutter to remove the stub of the pipe in the fitting. Glue a new section of pipe in place and you're done. The $30 tool shown above is much faster and a must-have for a plumber charging by the hour. For a one-time home problem, take the time and use a Dremmel.

 

[Camper]

Is that a electric wire I see coming out of the wall next to the drain pipe...:

 

[BJ42LX]

Is that a electric wire I see coming out of the wall next to the drain pipe...:

Garbage disposal.

That's how the "pros" do it...

 

[GPark]

I would not recommend those PVC "socket savers". I have tried using them at work to bore out PVC fittings, it's hard to keep them centered and they will ruin the whole fitting!

 

[jrsulo]

I would not recommend those PVC "socket savers". I have tried using them at work to bore out PVC fittings, it's hard to keep them centered and they will ruin the whole fitting!

That's the cheap version of that tool....ive got a set the is a life saver...never had a problem and saved the day many times !!!!!!!

 

[pstnbly]

Cut it of flush with the fitting in the wall. Use a heat gun to soften the pipe piece in the fitting, use a screwdriver to pry the pipe piece away from the fitting, place new pipe stub in. Easy peasy, do it all the time.

 

[Bib Overalls]

http://www.plumbingsupply.com/pvc.html#extender

Will restrict your flow a bit.

I have used a hacksaw blade in one of those trick handles to cut the stub in the fitting into three sections and then pried them out with a screwdriver.

 

[tcianci]

My first shot would be to try cutting off the fitting, leaving the hub and then peel the hub off the stub of the pipe. On my jobs we would then glue a female adapter to the stub that's left, and then a male adapter into the female one and continue making up the rest of the job. That way, the next time the plumbing has to be serviced, you hack off the old stuff, back out what's left of the male adapter and start fresh. I know it's an extra fitting but you'll kiss my sneakers if you're the next guy in there.

 

[pattenp]

Search Youtube for "How to Remove Glued PVC Pipe". Use heat and peal out the inner piece of pipe.

 

[the gypsy]

I am surprised nobody noticed or asked...... The water supply coming from the lower part of the back wall? You will have to think about that also. Can you shut the water to cut the copper?
My suggestion is to cut a large enough hole in the back with a multi-tool to be able to remove the base.

 

[Charles (in GA)]

That IS a cool tool! However I have had success cutting the fitting off leaving the hub still attached, carefully slice the hub lengthwise in two or three places down to the pipe and pri off the pieces. Then sand to clean up the pipe stub.

I have done this with smaller pressure pipe PVC no reason it won't work on a drain.

Charles