So, I have a broken pipe exactly on the L join on the wall. It's a huge crack but no big gap, just a curved crack along the pipe.

At first I thought of replacing the pipe, but it means that I have to take out the tiles and probably destroying the wall which must cost me a lot.

enter image description here

I've covered the crack using Marine/Plastic Epoxy Putty and it works kind of well, except that the wall part is still blasting out water everywhere when I turn the water supply back on. I tried reapplying more epoxy on the leaking area, but it doesn't seem to stick on the ceramic tiles.

So, what are my options now?

  • 4
    Do it right, replace the pipe. It will never be right, it will cost you more time and aggravation in the long run.
    – SteveR
    Commented Mar 27, 2012 at 12:44
  • 2
    At first I read that as "How do I steal a crack pipe" and was about to tell you that you've come to the wrong website. :)
    – Doresoom
    Commented Mar 27, 2012 at 14:22
  • @SteveR Let's say that I'm going to just replace the pipe, can I do it without breaking the wall at all? The pipe is glued to the fitting which is inside the wall. I removed the putty and I think I'll just post a new question.
    – Sufendy
    Commented Mar 27, 2012 at 15:53
  • Do you know why the pipe split? I have a bad feeling that the wall is concrete, and the pipe is not protected with rubber or foam wrap - which could be the very reason is has split.
    – dbracey
    Commented Mar 27, 2012 at 16:27
  • @Phelios - Please see my answer.
    – SteveR
    Commented Mar 27, 2012 at 17:33

3 Answers 3


That stuff is worthless for any water line that is pressurized. IF the crack does not extend into the tile and wall, one way to patch it would have been a glue-over clamshell repair kit like this:


However, you should try to figure out why the pipe is split. This is unlikely, because you generally only see it in slab floors, but if the wall is concrete and was poured around the pipe, that split could easily be from stress if the pipe wasn't wrapped with foam or rubber.

  • It's concrete. I was trying to rotate the pipe around the fitting, and I didn't know it's glued. And it break.
    – Sufendy
    Commented Mar 28, 2012 at 1:31
  • oh sorry - good luck, friend...
    – dbracey
    Commented Mar 28, 2012 at 3:25

I would remove the tiles around the pipe. Carefully prying them from the grout line. They look to be standard white tiles if you need to replace any broken ones. Once you remove the tiles then cut out the backer board enough to get to the fitting-pipe. Then you can cut the pipe out and using a coupling of the same size pipe add the new pipe and fitting. After the pipe is replaced rebuild the backer board and set the tile with some tile adhesive. Let dry one day then re grout the tile spacing.

  • so, I have to break the wall then. I will just call the plumber. Thanks.
    – Sufendy
    Commented Mar 28, 2012 at 1:33
  • 1
    Can't you access the pipe from the other side of the wall? If it is an interior wall, it might be easier to open up the wall from there, saving you messing with the tiles.
    – Eli Iser
    Commented Mar 28, 2012 at 6:41
  • @EliIser the other side of the wall is also tiled. It's another bathroom unfortunately.
    – Sufendy
    Commented Mar 29, 2012 at 4:25

I know this is an old post but given that the part in the picture looks like schedule 80 pvc i thought i'd give some advice to those that come across this page. based on the picture i'd say the pipe is 3/4" and the split pipe is behind the 90 degree elbow.

You could make a fitting by buying a schedule 80 1-inch pipe piece, along with (2) 1-1/2-inch hose clamps, some pvc primer and some christy's pvc cement (medium set).

Split the pipe piece you just bought in half to make a piece that will slip over a pipe.

you now have two fittings.

now assuming the water is shut off properly. apply primer to the pipe and the fitting, then unscrew the hose clamps until they open.

Apply the pvc cement to both the pipe and one of the fittings, then join the fitting at the crack in the pipe and slip both hose clamps over the fitting and pipe and tighten it down. then wait until it cures.

If done properly, you have just fixed the leak.

important note: make sure to tell them you want medium set pvc cement.

heres two references:



Here's an alternative if you want to ensure a good fit without the need for adjustable hose clamps.


  • I think in the OP's case, the split extends into the wall - and you can't repair that without removing (a bit of) the wall. Commented Jul 2, 2019 at 12:03
  • op's picture says otherwise. They drew a line where the crack was and as far as i can see, it doesn't extend into the wall. Commented Jul 4, 2019 at 9:17

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