I want to replace the "Iron Pipe Fitting" with a brass one. So I have to remove about 2cm wide and several cm deep of the grout and tile around the Iron Pipe Fitting in order to have enough space to take it off.
What is the best method ? Can I use the Chiseling function of a rotary hammer to chisel off the area around the Iron Pipe Fitting ? Will the vibration of the rotary hammer cause cracking of the entire tile ? Or cause pipe leakage deep inside the wall ?
I look forward to your reply.