Step 3 · Remove the Old Shower Arm and Flange
This is the step people usually slow down on. Go finger-tight first, then a quarter turn. No rush — replay the clip whenever it helps.
With the shower head removed, you can now remove the old shower arm. First, pull the decorative flange (escutcheon) away from the wall to expose the connection point. The arm is simply threaded into a fitting in the wall. Grasp the arm firmly and turn it counter-clockwise to unscrew it. If it's too tight to turn by hand, you can insert the handle of a pair of pliers or a screwdriver into the open end of the arm to use as a lever. Turn it counter-clockwise until it's free from the wall fitting.