The new sink is moving over by about 500mm. Yes I could but this is right down by the floor level so don't really want to disrupt the pipes under the floor. Not the most confident at doing plumbing
I'm updating my bathroom. I currently have pipework for my sink just coming through the floor in 15mm which then reduces into 8 or 10mm pipes. This fitting is just above the floor and I want to avoid altering pipework under the floor. Is it OK to then change the 8 or 10mm pipework back into 15mm...