Hi all

I intend to run a new feed to my kitchen hot tap as the existing one takes a
tortuous route, takes ages to run hot and has low flow when it finally
arrives. The new feed will come from above and be chased in/platered over
until the run is below worktop level.
So the idea was to run plastic pipe inside plastic conduit, the conduit
being plastered in just enough to give a plaster skim cover.
Are there any gotchas here - tiles falling off hot walls, recommended depth
of chase etc.?

TIA

Phil