I want to chase a 15mm cold pipe that feeds my shower into my bathrom wall, at the moment it runs down the wall surface to the shower and gets alot of condensation on it, will it suffer from condensation when I bury it into the wall? if yes how do I stop it?
Probably not, providing the inside of the wall isn't wet. When I did this, I sleeved the 15mm copper in 20mm PVC electrical conduit, to allow the copper to expand without cracking the plaster, and to keep the plaster off it. If you have a proper pipe bender, you can bend this combination on the 22mm former, e.g. to bring it out from the wall under the bath edge in my case.
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