How to clean a shower head with vinegar (on or off the arm)

Step by step: how to clean a shower head with vinegar

1. 1

   Check the finish first

   Chrome and stainless handle a vinegar soak well. Brass, oil-rubbed bronze, gold and some matte black finishes can be damaged by acids, so check your manual and soak only the spray face, briefly, or skip vinegar and use mild dish soap instead.

2. 2

   Rub the rubber nozzles

   If your shower head has soft rubber nozzles, turn on the water and rub your thumb firmly across them. Kohler and Delta both recommend this for rubber nozzles; flakes of scale pop out and blocked jets often start spraying again before you need any vinegar.

3. 3

   Bag the head in vinegar

   Pour about 2 cups of white vinegar into a gallon zip-top bag, lift it over the shower head so all the nozzles are submerged, and wrap a rubber band or twist tie around the arm to hold it. Fold the bag so vinegar does not touch the finished arm or collar if it is not chrome.

4. 4

   Let it soak

   Leave it for at least 30 minutes for light scale, or a few hours to overnight for thick white crust. You will see small bubbles as the vinegar reacts with the minerals. Do not leave vinegar on delicate finishes overnight.

5. 5

   Scrub the face and nozzles

   Remove the bag and scrub the spray face with an old toothbrush, paying attention to the rim of each nozzle. Poke stubborn holes gently with a toothpick or pin, from the outside only, so you do not push debris inside.

6. 6

   Flush with hot water

   Run the shower on hot for a minute or two to flush loosened scale and vinegar out of the head. Watch the spray pattern: every jet should run straight. If some are still weak, repeat the soak or move on to the filter screen.

7. 7

   Clean the filter screen if pressure is still low

   Wrap a rag around the nut and unscrew the head counterclockwise with a wrench. Pry out the small screen washer at the inlet, rinse it, and soak it in vinegar if it is crusted. Do not try to remove the flow restrictor, which Kohler’s instructions specifically warn against.

8. 8

   Reinstall it hand-tight

   Brush old tape and grit off the arm threads, wrap two or three turns of thread seal tape clockwise, and screw the head back on by hand until it is snug. Turn on the water and check for drips; tighten a little more only if it leaks.

Bag it or take it off: which method should you use?

Bag the shower head in place for routine cleaning; take it off only when pressure stays low after a soak, because the filter screen inside the inlet is probably clogged. For most homes, the best way to clean a shower head is that simple bag of white vinegar, since the acid dissolves the scale without any scrubbing inside the nozzles.

Roto-Rooter’s guide recommends a bowl at least as deep as the head is wide, at least 30 minutes of soaking and overnight for heavy buildup. It also advises not forcing a head that will not come off: leave it on the arm and bag it instead, so you do not damage the arm.

What the manufacturers say

Shower head makers agree on gentle cleaning: mild soap for the finish, vinegar only for the mineral deposits, and no abrasive cleaners.

• Kohler’s care instructions say to clean the finish with mild dish soap and warm water, rub rubber nozzles with your finger while the water runs, and remove deposits on mesh spray faces by applying vinegar and leaving it overnight. They also explain how to clean the screen washer and say not to remove the flow control.
• Delta’s guide uses a 50/50 mix of white vinegar and water, a toothbrush for deposits, an overnight soak for a crusted screen, and hand-tightening when you put the head back, because a wrench makes it easy to overtighten and cause damage or leaks.

Why shower heads clog, and how often to clean them

Shower heads clog because hard water leaves calcium and magnesium behind each time the head drips dry. The USGS notes that hard water forms scale in pipes and water heaters, and the same scale narrows each small nozzle.

With hard water, a monthly 30-minute soak keeps the jets clear; with soft water, every two or three months is usually enough. If you see white crust on faucets and glass too, our guide on removing hard water stains covers the rest of the bathroom.

If you are cleaning the whole shower, the best way is to work from the top down: start the shower head soaking, then clean the walls and grout, the glass, and finally the floor and drain, so dirty water only runs over parts you have not cleaned yet. Our guides to shower tiles and shower glass cover those steps.

Mistakes to avoid

• Leaving a brass, bronze or gold-finish shower head in vinegar overnight and dulling the finish.
• Tightening the head back on with a wrench, which can crack the plastic or strip the threads.
• Pulling out the flow restrictor to get more pressure; it is there by design and the instructions say not to remove it.
• Poking nozzles from the inside with a pin, which pushes scale deeper into the head.
• Forcing a seized shower head off and bending the shower arm.
• Using steel wool or abrasive powder on the spray face.