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  1. #1
    Join Date
    Jan 2008
    Location
    melbourne
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    12

    Default pipe joining cement - removable?

    Hi all,

    I have a few 50mm plastic waste pipes that i need to make a few adjustments to for my new bathroom. All the joints including the toilet waste are joined using the 'pipe cement' sealer, is there a way of removing this stuff other than cutting the joins out ?
    Cheers,
    Jim

  2. #2
    Join Date
    Nov 2007
    Location
    Melbourne
    Age
    49
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    99

    Default

    I certainly am no expert here, only having done this a few times, but from what I have read, the joint generally is just as strong as the tube.

    Therefore, yes, have to cut.

  3. #3
    Join Date
    Sep 2006
    Location
    Avoca Victoria
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    81
    Posts
    7,790

    Default

    I've tried a heat gun before, and it lossens the glue....but there's also a real good chance of warping the pipe......may be better to cut and re-glue.

  4. #4
    Join Date
    Jun 2003
    Location
    Sunbury, Vic
    Age
    85
    Posts
    632

    Default


    The solvent literally welds the plastic together
    Tom

    "It's good enough" is low aim

  5. #5
    Join Date
    Jan 2008
    Location
    melbourne
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    12

    Default

    Wow , 3 replies in less than 10 mins - and you all agree! Cheers guys , looks like i'm gonna be cutting pipes tonight!
    Thanks,

    jim

  6. #6
    Join Date
    Nov 2007
    Location
    Melbourne
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    49
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    Default

    Quote Originally Posted by jambo000 View Post
    Wow , 3 replies in less than 10 mins - and you all agree! Cheers guys , looks like i'm gonna be cutting pipes tonight!
    Thanks,

    jim
    It's good when that happens... isn't it

    (If only it was always like that....... )

  7. #7
    Join Date
    Jul 2003
    Location
    On the Downs, Darling SEQld
    Posts
    420

    Default

    Depends if you want to save the Pipe,
    or the Fitting.
    But yes,
    generally they are WELDED!
    Navvi

  8. #8
    Join Date
    Nov 2007
    Location
    Canberra Australia
    Posts
    71

    Default

    I've seen my mate un-glue by setting them on fire. It's been awhile but I think he poured some white spirit over and in the fitting and lit it up. I guess it's the same principle of the heatgun trick.

  9. #9
    Join Date
    Jul 2007
    Location
    Sydney-south
    Posts
    333

    Default

    Cut out what you need to and use sockets to join back on to the existing pipe. They're about $1.50 each, worth it I reckon.
    Plumbers were around long before Jesus was a carpenter

  10. #10
    Join Date
    Oct 2007
    Location
    aus
    Posts
    7

    Default

    If your wantin top save the fiiting you can cut the pipe just before the fitting, smear some glue around the inside of the pipe in the socket and light it ( an oxy set spark lighter works well nd keeps fingers away) after a while the inner bit ( the old pipe ) is soft enough to be levered out with an old screw driver. Probably much easier to do than explain.

    I should note the fitting needs to be facing in a direction to have the flame coming out not into the fitting.

  11. #11
    Join Date
    Jul 2007
    Location
    Sydney-south
    Posts
    333

    Default

    Quote Originally Posted by powellm View Post
    If your wantin top save the fiiting you can cut the pipe just before the fitting, smear some glue around the inside of the pipe in the socket and light it ( an oxy set spark lighter works well nd keeps fingers away) after a while the inner bit ( the old pipe ) is soft enough to be levered out with an old screw driver. Probably much easier to do than explain.

    I should note the fitting needs to be facing in a direction to have the flame coming out not into the fitting.
    Why go to all the heart ache and bother when you can pick up a socket for bugger all, not to mention the time you'd save. I only burn fittings out if its absolutely necessary.
    Plumbers were around long before Jesus was a carpenter

  12. #12
    Join Date
    Jan 2008
    Location
    melbourne
    Posts
    12

    Default

    I asked the question not because i wanted to keep the fitting but to not have to cut into pipe that was just the right height. Anyway , i cut the pipe and i managed to get away with it.
    Thanks for the replies...

    jim

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