In article ,
The Natural Philosopher writes:
John Stumbles wrote:

Jo King wrote:


Fitting a shower want to hide the pipe behind plaster can I use
compression fittings or has it got to be soldered joints. or would plastic
flexi pipe connect to the original copper.
Thank you for any help.


I use copper with soldered elbows where the pipes turn to come out of the
wall, or plastic with a compression elbow. In either case test for
water-tightness before plastering and tiling in (obviously)


...and its no bad idea to fit an insulation sleeve round it to prevent
plaster contacing copper - and allow for expansion.

I threaded the 15mm copper into 20mm electrical conduit, and the
two together bend quite nicely with a 22mm pipe bender, which I
used to get the tails sticking out of the wall under the bath
without having an elbow in the wall. I kept the bends shallow
(like 135º) so the copper could still move inside the conduit,
to allow for expansion.

--
Andrew Gabriel