Step 2 · Remove the Old Shower Head
Attempt to unscrew the old shower head from the existing shower arm by turning it counter-clockwise by hand. If it is too tight, wrap your soft rag around the connector nut of the shower head and use your adjustable wrench or channel-lock pliers to grip it. Turn counter-clockwise to loosen and remove it completely. Since you are replacing the arm, scratching it is not a major concern, but it is good practice to use the rag.