To repair a leaky shower head, inspect the washer or O-ring on the inside for signs of wear, and replace it if necessary before putting the shower head back on. Taping the threads of the pipe stem also eliminates a possible source of leaks.Continue Reading
Turn off the water main to your entire house, but keep a towel around in case excess water runs out the pipe. Unscrew the shower head, using your hand or a crescent wrench. Find the rubber O-ring or plastic washer inside the threads, and replace the piece if it's damaged or worn.
Place 3 cups of vinegar in a small pot, add water, and bring the mixture to a boil. Turn the heat off, and remove any rubber parts from the shower head before placing it in the pot. Leave it there for half an hour, then scrub the interior and exterior jets with a rag or old toothbrush to remove mineral sediments.
Wrap Teflon tape around the pipe stem threads. Stop after putting a thin strip around the threads at the end of the stem.
Put the shower head back on the pipe, and tighten it by hand. Turn it one more time with the crescent wrench once you can no longer tighten it by hand. Once it is tight, turn the main water valve back on.