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Separating glued PVC

| Posted in General Discussion on December 8, 2002 12:11pm

What is the best way to separate glued PVC?  I have a 4″ cleanout plug that I need to remove so I can add a short length of pipe and a new tee fitting.

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  1. riverr1 | Dec 08, 2002 12:13am | #1

    Hack saw or sawzall. If there is something else, I'd be interested in hearing about it.

    1. benkaren | Dec 08, 2002 12:18am | #2

      How do you remove the remaining glued in part?

      1. riverr1 | Dec 08, 2002 12:29am | #3

        Ben,

        I would cut that out also, and put a union in.

        Don

      2. MisterT | Dec 08, 2002 12:39am | #4

        Ben,

        Gluing PVC is some what like when youget married.

        Speak now or forever hold your peace!

        PVC cement mkes two pieces into one, There aint no easy way to get em apart.

        sawzal and new parts.

        TDo not try this at home!

        I am a trained professional!

        1. UncleDunc | Dec 08, 2002 01:02am | #7

          I agree with Mr. T. If it was done right, the pipe and the socket, at least in the deepest third of the joint, have been fusion welded. No joint line, just solid PVC all the way through. No more likely to break along the line where the joint was than in any other direction. But you might get lucky and the chipping and chiseling approach might work.

          1. bobtim | Dec 08, 2002 01:15am | #8

            I don't know much about pvc , but I was once able to work/pry apart 2 abs fittings that had been glued with multi-purpose (supposedly good for both pvc and abs) . I would not even try to take apart anything that was joined using the proper glue/solvent.

            tim

            ps I don't use multi purpose glue anymore

  2. MarkCadioli | Dec 08, 2002 12:52am | #5

    If it's a male into a female socket try this. Carefully cut with a hacksaw blade or similar through the first layer only ( you will be cutting parralell with the pipe.) Make a series of cuts around the circumference. Now take a narrow sharp chisel and carefully slip it between the layers and prise apart in sections.

    Or you can try this. My plumber did it once on one of my jobs. Wipe fresh glue around the inside of the piece you want to remove. Set fire to it. Yes! Set fire to it. Let it get hot without melting everything, then extinguish. The piece you want to remove should now prise out easy. ( wear gloves)

    regards

    mark

    1. riverr1 | Dec 08, 2002 01:00am | #6

      Mark,

      No offense, but I can't see where a couple of bucks in parts is worth that risk with fire! Nor is it worth the time of trying to pry them apart.

      Don

      1. MarkCadioli | Dec 08, 2002 01:17am | #9

        Don

        You are absolutely right..I should have added the proviso....this was done to a piece that concreted in a slab. The alternative was to jackhammer up the slab ...a major peice of work....the fire did the trick and saved a lot of work.

      2. RW | Dec 08, 2002 01:58am | #10

        No, but he sure scores points for entertainment value!

        And it worked!

        I was gratified to be able to answer promptly, and I did. I said I didn't know.  - Mark Twain

        Edited 12/7/2002 5:58:57 PM ET by RWORIGINALS

    2. benkaren | Dec 08, 2002 03:16am | #11

      Everyone, thanks for the feedback.  In my case I have a cleanout in the end of a 4" tee.  I want to remove the cleanout and butt another 4" tee to the existing tee.  Assuming I can't remove the cleanout is it possible to cut it off flush with the end of the tee then butt the second tee against the first and use some sort of rubber clamp around the outside of the junction where the 2 tee's meet.  Does a rubber clamp exist that fits the outside diameter of a 4" tee?

      1. mike4244 | Dec 08, 2002 03:50am | #12

        Plumbing supply stores have flexible PVC couplings that connect with hose clamps.They  are similar to No Hub fittings.

      2. MarkCadioli | Dec 08, 2002 06:44am | #13

        Ben

        Don't know about  the cleanouts in your neck of the woods, but ours double as a socket. You can glue the next piece right into them.

      3. RalphWicklund | Dec 08, 2002 09:05am | #14

        If your cleanout is a female threaded fitting that the plug screws into, I think a threaded male adapter of the appropriate size will screw right in. This will add only a couple of inches to the length of the fitting and then you can glue up whatever you need.

      4. User avater
        Luka | Dec 08, 2002 09:58am | #15

        Yes, they do make rubber connectors for 4" pipe. It is a seamless sleeve of rubber that slides over the ends of both pipes, and is clamped in place with hose clamps. The rubber sleeve is inside a stainless steel sleeve that compresses, (slides over itself), when the hose clamps compress. The hose clamps are rivetted to the stainless sleeve. Very effective. But something that I would only use on something that I knew was not going to get any real pressure to speak of.

        They also make pvc connectors. These are essentialy a piece of pvc with compression fittings on both ends. Loosen the ends, slide the pipes to be connected, into the ends. Through the rubber rings inside, into the middle of the connector. Then tighten the compressing fittings.

        I have seen the second kind in sizes up to 2". I have no idea if they make them in the 4" size.Don't bogart the Ghost

        Quittin' Time

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