Step 7 · Install the New Shower Head
Ensure the small rubber washer is properly seated inside the threaded connector of the new shower head. Screw the new shower head onto the newly installed and taped shower arm. Turn it clockwise and hand-tighten it firmly. In most cases, hand-tightening is sufficient and recommended by manufacturers to avoid damaging the plastic threads or the washer. If the instructions specify using a tool, or if it leaks after hand-tightening, use your rag-wrapped wrench on the fitting's nut to give it a slight quarter-turn.