How to Replace a Shower Head
Turn off the water supply to the bathtub and turn on the faucet. There should be no water flow.
Wrap a piece of scrap cloth around the shower head stem. The cloth protects the stem from being damaged by your pipe wrench.
Twist the old shower head off the stem, using two pipe wrenches. Use one wrench to hold the stem in place and the other one to twist the old shower head off. Hold the stem on the part wrapped with cloth.
Wrap Teflon tape around the top portion of the stem that attaches to the shower head. This seals the connection between the two parts.
Place the new shower head over the stem and screw it over the Teflon-taped area until it is secure.
Replace a Faucet
Turn off the water to the bathtub. If your tub does not have a water supply valve, turn off the main water supply to your home. Turn on the faucet to check that the water is off.
Wrap scrap cloth around the faucet. Pull and twist it until it starts to loosen. Continue pulling until it detaches from the stem and tub.
Remove the hot and cold water assembly from the stem, using the bath socket wrench. Remove the old washers.
Insert the new faucet unit into the old faucet’s place. Follow the directions from the manufacturer carefully to complete the installation.
Turn on your main water supply to the house and test your new faucet for installation problems. Turn on the cold and hot water valves and check the water flow.