Clean your showerhead so the water will flow freely and with an even amount of pressure.
Use this checklist when you go to the store and purchase your items.
Mix equal parts of white vinegar and water in an empty spray pump bottle. Use a small funnel to avoid any mess. Use a new bottle to ensure that the inside of the bottle doesn't contain any chemical residue. If vinegar combines with other chemicals, a toxic combination may result.
Shake up the vinegar and water mixture in the spray bottle.
Spray the mixture on the head and arm of the shower fixture. Pay particular attention to the holes in the head of the shower. Mineral build-up makes these holes tricky to clean.
Scrub the head of the shower with a sponge that has a scratch pad. Wear rubber gloves to protect your hands. Keep a dry towel close by to dab off any droplets of the mixture that may get on your arms. This will help avoid skin irritation.
Rinse the sponge. Use the soft side to wipe the areas you just scrubbed. If you find that this is enough to clean a showerhead completely — including the mineral deposits in the holes of the head — stop at this step. However, if the head is still clogged, go to the next step.
Fill a plastic sandwich bag with the vinegar and water mixture. Add enough of the solution to fill the bag at least halfway. Fill with enough water to immerse the head completely without any of it being above the water line.
Place the bag with the vinegar and water mixture around the showerhead. Make sure the head is completely covered with the liquid. Wrap the opening of the bag around the shower arm that attaches to the head, and use the twist tie to fasten it into place.
You can use this method to clean a showerhead even if you have a removable model that rests in a cradle. Remove the head from the cradle and immerse it in the bagged vinegar and water mixture. Wrap the opening of the bag around the arm. Place the head back into the cradle and hang it upside down so that both the head and the bag hang down. Add a twist tie to keep the bag shut.
Allow the head to remain in the mixture for at least half an hour. This allows the solution to clean the showerhead completely. Take the head out of the plastic bag. Wipe the head again and scrub the areas that contain stubborn mineral deposits. If you find that the holes are still clogged, use nylon cleaning brushes to help clear out the holes. Choose a brush with bristles small enough to fit through the holes. Make sure that you don't push the brush too far into the holes — only insert the brush deep enough to remove grit. Use another nylon brush to gently scrub dirt out of any other grooves, but be careful not to scratch the showerhead.
Use your sponge to wipe away any leftover grit. Return the detachable showerhead to its normal working position.
Spray a bit of the vinegar and water mixture on the head, and wipe it dry with a cotton or linen towel to prevent water spots from forming.