I need to install a shower against a tiled wall.
I have 2 issues :
I need to safely remove a tiny bit of the tile, to give me more access to the water outlet of the pipe. What tool and method should I use to avoid breaking the whole tile?
Behind the tile, there is some cement/concrete (I think). I need to remove it to have access to the water outlet, but without breaking everything (the tool I use will be very close to the tile). Should I use a drill or a chisel and hammer?