I'm going to run a gas pipe from the meter to the kitchen the other side of the wall (trying to save costs, leaving the connections for the corgi man later in the week)
I beleive I need to run the pipe through a sleeve if going through a wall
so for 15m I use a peice of 22mm ?
and if I opt for 22mm to make sure enough flow for the oven and hob i run this through " " what exactly ?
can I use plastic waste pipe ?