Had a plumber do some preparatory pipework for a new bathroom.
He has channelled up the wall to the location of a shower valve. (Correct spacing, etc.) I now need to plaster over ready for tiling. He has put some tape on the pipes (grey). Is there anything else I should do before burying the pipes in plaster?
I've found that applying some strips of fibreglass insulation helps in stopping cracks - the pipes can expand and contract into it without affecting the plaster too much, just put some over it and tape it at the edges wih whatever you have lying around, but make sure it sits below the level of the existing plaster.
Yes, rip it out and do it properly.
Use plastic pex, pipe-in-pipe. The outer 'pipe' is a ridged conduit, the inner pipe slides into it. Suggest that to your plumber and see what excuses he trots out. Then tell him.......
The Water Regulations require any water supply pipes to be removable for repair and that's the only way of achieving it that I'm aware of.
Surely making a rigid pipe removable is not practical. Imagine my case where the pipe enters the wall below the shower basin - at elbows. It goes up the wall to another elbow and into the mixer. It wouldn't be able to slide up or down even if it was free to do so.
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