Quick answer Fill a plastic bag with white vinegar, tie it over the shower head so the nozzles are submerged, and leave it for 1–8 hours. Then scrub the nozzles with an old toothbrush and run the water. For heavy scale, use a 50/50 vinegar-and-water mix with a little dish soap.

If your shower sprays in odd directions, dribbles, or has lost pressure, the cause is almost always limescale — the white mineral deposit that builds up in the nozzles. It is not a plumbing fault, and you do not need a plumber or a landlord.

The fix is a bag of vinegar and a bit of patience. This guide covers the standard method, a stronger mix for heavy scale, and how to clean a fixed head you cannot remove.

On this page

  1. Why shower heads clog
  2. The vinegar-bag method
  3. Heavy limescale
  4. Fixed heads and hoses
  5. FAQ

Why shower heads clog

Tap water contains dissolved minerals, mainly calcium and magnesium. When water evaporates from the nozzles between showers, it leaves those minerals behind as limescale. Over months, the deposits narrow the holes until the spray pattern breaks up and pressure drops.

Limescale is alkaline, which is why an acid — vinegar or citric acid — dissolves it. This is the whole trick.

The vinegar-bag method

  1. Fill a sturdy plastic bag with enough white vinegar to submerge the shower head's face.
  2. Add a tablespoon of dish soap to help the vinegar cling.
  3. Slip the bag over the shower head and secure it with a rubber band or zip tie around the neck.
  4. Leave it for at least an hour, and up to eight for a badly scaled head.
  5. Remove the bag, scrub the nozzles with an old toothbrush, and run the water on hot for a minute.
  6. Wipe the head dry and repeat if the spray is still uneven.
Do not use vinegar on everything Vinegar is safe on chrome, plastic and most finishes, but it can dull some plated or painted finishes. Test on a hidden spot first, and never leave it on for days.

Heavy limescale

If the head is heavily scaled, plain vinegar may not be enough. Two upgrades help:

  • Warm the vinegar. Warm (not boiling) vinegar dissolves scale faster. Heat it in a kettle and let it cool slightly before pouring it into the bag.
  • Use citric acid. A tablespoon of citric acid powder in a cup of warm water is stronger than vinegar and leaves no smell. Soak the head in a bowl if you can remove it.
  • Use a pin. For stubborn blocked nozzles, gently poke each hole with a pin or paperclip after soaking. Do not force it — you can split the rubber nozzle.

Fixed heads and hoses

If the head is fixed to the wall and you cannot get a bag over it, wrap a vinegar-soaked cloth around the face and cover it with cling film to stop it drying out. Leave it for a few hours.

For a hose, unscrew it from the head and the wall outlet if you can, and soak the whole hose in a bucket of vinegar solution. If it is not removable, run vinegar through it by submerging one end and letting gravity do the work.

Prevention Once it is clean, wipe the shower head dry after each use and descale it every two to three months. In a hard-water area, that is the difference between a good shower and a bad one.

When to replace instead of clean

Cleaning fixes most shower heads, but sometimes replacement is the better answer. A new head is inexpensive and takes five minutes to fit.

  • The nozzles are split or missing. Rubber nozzles tear with age and cannot be repaired. Replace the head.
  • The head leaks at the joint. A leak where the head meets the arm is usually a worn washer or a cracked thread — replace rather than repair.
  • It is plastic and heavily scaled. Plastic heads pit and hold scale in a way chrome does not. If descaling no longer restores the spray, replace it.
  • You want better pressure. A modern head with a well-designed spray plate often feels stronger than an old one, even at the same water pressure.

In a rental, keep the old head and refit it when you move out. It takes a minute and avoids any question about the deposit.

Shower head types

How you clean a shower head depends on what it is made of and how it is mounted. The vinegar method works on all of them, but the details differ.

TypeCleaning note
Fixed chrome headWrap a vinegar-soaked cloth and cover with cling film
Handheld on a hoseUnscrew and soak the head in a bowl
Rainfall headLarge face — use a bag, and soak longer
Plastic headVinegar is safe; avoid very hot water which can warp it
Low-flow / eco headSmall nozzles clog faster — descale more often

Rainfall heads are the awkward one, because the face is too wide for a small bag. Use a large zip bag or a bowl held up against the head, and give it longer — the scale on a wide face is spread thinner but covers more area.

If pressure is still low after cleaning

If you have descaled the head and the pressure is still poor, the problem is elsewhere. Work through these in order.

  1. Check the flow restrictor. Most modern heads have a small restrictor disc inside the fitting. It can clog with scale — remove and clean it.
  2. Check the hose. A kinked or internally perished hose restricts flow. Flex it while the water runs and see if the pressure changes.
  3. Check the isolation valve. The valve where the shower feeds off the supply may be partly closed. Open it fully.
  4. Check other outlets. If the kitchen tap is also weak, the problem is the building supply, not your shower.
  5. Check the head itself. A very old head with a worn spray plate can restrict flow by design. Replacing it is often the fix.

In a rental, if the pressure is low at every outlet, that is a building issue and worth reporting to the landlord rather than trying to fix yourself.

Gear that helps

If descaling no longer restores the spray, a replacement shower head is inexpensive and takes five minutes to fit.

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Frequently asked questions

How do I clean a shower head without removing it?
Fill a plastic bag with white vinegar, slip it over the shower head so the nozzles are submerged, and secure it with a rubber band. Leave it for one to eight hours, then scrub the nozzles with a toothbrush and run the water.
Why has my shower pressure suddenly dropped?
The most common cause is limescale blocking the nozzles. Descale the head with vinegar first. If that does not fix it, check the hose for kinks and the shower head for a flow restrictor that may be clogged.
Can I use vinegar on a chrome shower head?
Yes, vinegar is safe on chrome and most plastic finishes. It can dull some plated or painted finishes, so test on a hidden spot first and do not leave it on for more than a few hours.
How often should I descale a shower head?
Every two to three months in a hard-water area, and every six months in a soft-water area. If you can see white deposits on the nozzles, it is overdue.
Does a shower head affect water pressure?
Yes. A clogged head reduces flow, and a flow restrictor limits it by design. Cleaning the nozzles restores the flow the head was designed for. If pressure is still low, the issue is in the plumbing, not the head.
Bottom line Limescale is almost always the cause of a weak or spraying shower. Bag the head in white vinegar for a few hours, scrub the nozzles, and run the water. For heavy scale, use warm vinegar or citric acid. Descale every two to three months to keep it good.
A

Apartment Air Fix Editorial Team

We test and write about the appliances that break in apartments. Our recommendations are based on hands-on use, manufacturer specs and verified owner reviews — never on commission rates.

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