ungluing an ABS pipe joint
Srini Thimmiah
system has developed a crack close to an elbow joint. I would like to
replace part of the pipe but keep the joint since there are 3 more joints at
the same place.
This would entail cutting off half a foot of the pipe upto the elbow joint
and then somehow removing the part of the pipe that's welded inside the
elbow with ABS compound. Anyone have any ideas on how to do this? I once had
a plumber make small cuts in the leftover part of the pipe and pried out the
remains with a pair of pliers on a similar job. Is there some compound I
could use to loosen it instead?
BTW, the piping is all ABS plastic.
Regards,
Srini Thimmiah
Speedy Jim
Maybe grind it out with a Dremel tool.
Going to be a tough job no matter what>
Jim
Terry
This is how I deal with your type of problem.
"Srini Thimmiah" <tsre...@hotmail.com> wrote in message
news:fa5%6.140228$%i7.94...@news1.rdc1.sfba.home.com...
Steve Knight
>I wonder if anyone can help me with this one. A pipe in my bathroom drainage
>system has developed a crack close to an elbow joint. I would like to
>replace part of the pipe but keep the joint since there are 3 more joints at
>the same place.
>
ABS pipe is easy to deal with. You can buy some ABS or pcv sheets at places like
www.mscdirect.com just clean the spot clean the piece of plastic apply primer
and or glue apply piece and tape tightly in place till dry. if it is a hairline
crack just glue would do it.
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Bruce Birbeck
You could try a pipe reaming tool designed to remove the pipe from the
fitting.
See http://www.pascospecialty.com/d00004.htm for details.
I have and use the 1 1/2" and 3" ones. Work like champs, they do. Also
very useful for adjusting the height of closet stubs where you can't
trim with a saw.
Srini Thimmiah
Regards,
Srini Thimmiah
Dan Hicks
The way the plumber did it is about the only way (but a fairly good
one). The solvent that is used to glue plastic pipe actually melts the
plastic and causes it to "weld" together, so you won't find any solvent
that will undo the joint without weakening the pipe.
--
Dan Hicks
A conclusion is simply the place where you got tired of thinking.
John Hewitt
have little or no water pressure. Watched a garden irrigation guy do
it, and I have now done it myself.
Cut the PVC pipe about 3/16 of an inch before it enters the fitting
[elbow tee, etc]. Use a hacksaw blade inside the remaining section of
the PVC pipe and cut a slot through the pipe wall along it's entire
length - but not into the fitting. You may not be able to cut through
the length of the entire stub of the pipe, just make sure you cut at
least 75% of it.
Take a _sharp_ flat blade screwdriver and a light hammer and drive the
screwdriver blade between the pipe stub and the fitting alongside the
slot cut by the saw blade. Keep working the screwdriver into the join,
on both sides. Gradually the pipe stub will part from the fitting in
the area you are working on. It may be a little ragged, no matter.
When the pipe stub has opened enough, grab the pipe stub with a pair
of strong pliers and turn / rotate/ spin the stub[ do not pull it will
achieve nothing], it will peel right out of the fitting.
The inside of the fitting will look a little rough, natuarally, but
clean it with PVC solvent [and the new pipe!], use PVC glue liberally
to join. The joint will be watertight.
The guy who showed me this, uses this technique almost everyday to
repair in ground irrigation systems - not the main lines, but the
small bore feeders to the sprinkler heads.
John Hewitt, Malaga, Spain jhe...@arrakis.esinvalid
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User Johnh
They make rubber boots with clamps that will fit over the flange on your
PVC elbow. I had almost the exact same problem about 6 months ago. Cut
out about a foot of pipe and used two of the rubber(?) fittings with
clamps. Works fine for a drain line...
---john.
TimothyBil
>>and then somehow removing the part of the pipe that's welded inside the
>>elbow with ABS compound. Anyone have any ideas on how to do this? I once had
>>a plumber make small cuts in the leftover part of the pipe and pried out the
>>remains with a pair of pliers on a similar job. Is there some compound I
>>could use to loosen it instead?
Not likely - remember, if the joint was glued properly in the first place,
there are no longer 'two' pieces of pipe 'glued' together, but two pipes
'fused' into one compound shape. There should no longer be a seam to separate
them along - it should be melded into a single piece of plastic. If the
plumber was able to take it apart like that, it was probably not made properly
in the first place.
Dan Hicks
The joint was made properly. The fusion is never perfect -- there are
always gaps and weak spots, just like the shear planes in some types of
rock. So it's not too hard to split the joint along these planes if you
know what you're doing.
--
Dan Hicks
Difficulties increase the nearer we approach our goal. --Goethe