Step 3 · Remove the Old Shower Arm
The shower arm is screwed into a fitting inside the wall. Grip the arm firmly with your hands and turn it counter-clockwise to unscrew it. If it's too tight, you can insert the handle of your channel-lock pliers or a screwdriver into the opening of the arm to gain leverage. Apply steady, firm pressure. Be careful not to apply jerky or excessive force, as this can damage the fitting in the wall. Once loosened, continue unscrewing by hand until it is free. The decorative flange will slide off as you remove the arm.