Waste pipe elbow - replacing/repositioning?

[Chris993C4]

I've got a plastic waste pipe coming through a wall, immediately into a (40mm, grey, solvent welded) elbow. I'd like to reposition the elbow, so that the pipe continues onwards at a different angle.

However, the elbow is right up against the wall, so there is no spare pipe to play with:

      |
      |
      |####
----------########
pipe              #
----------#####    #
      |####    #   # elbow
      |        #   #
 wall |       ##   ##
      |       #     #

If I cut the elbow off completely, then the end of the pipe will be flush with the wall - are there internal fittings that could be used here?

Or, I could dremmel the elbow off, being careful to leave the protruding pipe as untouched as possible - although I can forsee problems sealing against a new elbow.

[Pooky67]

Can you get to the rest of the pipe the other side of the wall?

[Gingerbread Man]

You could cut the elbow off flush with the wall. Enlarge the hole around the pipe and fit a straight coupler on the pipe?

[DrDeAtH]

why fit a straight coupler, when he can just fit a new bend to the shortened pipe, albeit further into the wall....

[Gingerbread Man]

DrDeAtH said:

why fit a straight coupler, when he can just fit a new bend to the shortened pipe, albeit further into the wall....

Same idea different fitting.

[Rickyy]

Cut the old fitting off so you are left with the pipe and the collar of the fitting. Use a junior hacksaw and cut some grooves in the collar, then with a small flathead screw driver prise off the old collar. Sometimes it works, others it splits the pipe.

I've done this plenty of times and never had a problem with it leaking.

Alternatively as mentioned, cut the pipe flush with the wall, make the hole bigger and use a straight coupling with a male-female elbow.