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Old 02-25-2014, 03:16 PM   #1
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Securing a P-Tube on a Sink Drain


I have to replace the faucet in a 44 year old bathroom. We are probably 2 years from re-doing the bathroom so a faucet fix was our only choice at this time.

It probably took 6 hours to remove the old faucet as I had to ultimately use my dremel to get through the corroded faucet parts to remove them.

Now I have to replace the P-tube, and have attached several photos.

Photo _3 - shows the original P-Tube attached to the drain pipe, when I pulled it off the sink drain I then had to tug a bit to get it off the drain pipe. As you can see for all this time the slip nut was UNDER the flange which is not at the edge of the pipe (Photo _1 shows the flange 1/4 inch from the edge). The top of the slip nut was wedged up against the flange on the drain pipe. There was never a leak in any of the pipes.

The space under the sink is very small and although I have not made a significant effort to loosen the drain pipe at the point closest to the back wall (Photo _4), I am afraid that 44 years of corrosion and little room to get a wrench pipe in there will make it nearly impossible to remove the pipe at this point and then I would have to loosen the pipe at the joint with the elbow (Photo _4) just to fit a slip nut on the inner side of the pipe so that the compression fitting of a new P-Tube would be assembled correctly.

Is there any other option to making a sealed connection of the p-tube to this end of the drain pipe. If the only option is desoldering the end joint so that I can put a slip nut on and resolder the joint then at least I will know there are no other options.

Any assistance would be appreciated.

Securing a P-Tube on a Sink Drain-drain-pipe_1.jpg

Securing a P-Tube on a Sink Drain-drain-pipe_2.jpg

Securing a P-Tube on a Sink Drain-drain-pipe_3.jpg

Securing a P-Tube on a Sink Drain-drain-pipe_4.jpg

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Old 02-25-2014, 03:33 PM   #2
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Securing a P-Tube on a Sink Drain


Wait for one of the plumbers to respond. They are busy helping others. Someone maybe able to come up with a solution until you're ready to re-do your bathroom.


Last edited by jmon; 02-25-2014 at 03:37 PM.
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Old 02-25-2014, 03:38 PM   #3
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Securing a P-Tube on a Sink Drain


You do not have much room to do anything then unsolder and replace the trap with a new chrome trap. Make sure you sand it where it solders in and use flux and solder.
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Old 02-25-2014, 03:39 PM   #4
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Securing a P-Tube on a Sink Drain


I'd be opening up the wall and replacing most of what your seeing there and replacing it with PVC.
Those are old style soldered drains.
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Old 02-25-2014, 04:12 PM   #5
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Securing a P-Tube on a Sink Drain


Thank you Ghostmaker.

Do you recommend any particular make or spec for the flux for this solder?
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Old 02-25-2014, 05:08 PM   #6
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Securing a P-Tube on a Sink Drain


Oatey flux any solder can be used because it's not a water line. Just don't use an acid core solder commonly used in electrical work.
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Old 02-25-2014, 05:50 PM   #7
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Securing a P-Tube on a Sink Drain


if you don't remove all the old copper and replace it with plastic...just cut it off and install fernco 1/1/2 copper x 1 1/4 plastic and new p trap no soldering...ben sr
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Old 02-26-2014, 09:46 AM   #8
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Securing a P-Tube on a Sink Drain


Not hard to just do the solder thing either. I don't think ben is telling you to use a all rubber fernco.
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Old 02-26-2014, 10:13 AM   #9
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Hi Ben,

Are you suggesting that I cut across immediately above the flange and then use fernco fitting? Would the steel clamp prevent leaks? Or should I just cut the flange off and then glue the slip end of a PVC coupler to the cut end?

Thanks
Andrew
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Old 02-26-2014, 04:33 PM   #10
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Securing a P-Tube on a Sink Drain


Quote:
Originally Posted by Ghostmaker View Post
Not hard to just do the solder thing either. I don't think ben is telling you to use a all rubber fernco.
hey ghost ..yea that is what i suggested only for the reason that alot of homeowners can't solder in tight places safely ..ben sr
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Old 02-26-2014, 04:36 PM   #11
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Securing a P-Tube on a Sink Drain


Quote:
Originally Posted by muscadine33 View Post
Hi Ben,

Are you suggesting that I cut across immediately above the flange and then use fernco fitting? Would the steel clamp prevent leaks? Or should I just cut the flange off and then glue the slip end of a PVC coupler to the cut end?

Thanks
Andrew
in front of the copper 45 you could cut it off and get a new trap and install a mission couppling ..it the one with metal clamps ...1 1/2 copper x 1 1/4 ...ben sr
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Old 02-26-2014, 08:41 PM   #12
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Securing a P-Tube on a Sink Drain


Careful when tightening clamps onto old copper, sometimes if the wall is failing, you can end up crushing it. Once you get there, you never go back.
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Old 02-27-2014, 11:49 AM   #13
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The integrity of the pipe shown above is solid. So I will cut above the flange and go from there. Thanks

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