Limescale builds up inside and around your showerhead nozzles. It’s calcium and magnesium left behind when hard water evaporates. The nozzles get blocked. Water pressure drops. The spray pattern goes uneven. In Perth, Adelaide, and Melbourne’s western suburbs, this happens fast.
White vinegar dissolves limescale. The clean-up takes about an hour. The steps below cover it properly.
What You Need
- White vinegar (plain household vinegar works fine)
- A plastic bag or shallow bowl
- Rubber bands or a zip tie
- An old toothbrush
- Clean cloth or towel
For heavy build-up, you can use citric acid instead of vinegar. Mix 1-2 tablespoons of citric acid powder in 500ml of warm water. It’s stronger than vinegar on stubborn scale.
Method 1: Clean Without Removing the Showerhead
This is the easiest method. You don’t disconnect anything.
1. Fill a plastic bag with white vinegar. Use enough to fully submerge the showerhead face. 2. Slide the bag up over the showerhead. The face should sit in the vinegar. 3. Secure the bag with a rubber band around the shower arm or neck. 4. Leave it for at least 30 minutes. For heavy scale, leave it for 1-3 hours. 5. Remove the bag carefully. Pour the vinegar down the drain. 6. Turn on the shower and run hot water for 2-3 minutes. This flushes out loosened scale. 7. Scrub any remaining deposits with an old toothbrush. Pay attention to the nozzle holes. 8. Wipe down the whole showerhead with a damp cloth.
Important: If your showerhead is gold, brass, or nickel-coated, don’t leave vinegar on for more than 30 minutes. Acid can damage or strip the finish.
Method 2: Remove and Soak the Showerhead
For deep cleaning or very blocked nozzles, removing the head gives better results.
1. Unscrew the showerhead from the arm. You may need a wrench. Use a cloth between the wrench and the fitting to protect the finish. 2. Place the showerhead face-down in a bowl or bucket of white vinegar. Submerge the nozzle face fully. 3. Soak for 30 minutes to 2 hours depending on how heavy the scale is. 4. Remove and scrub with an old toothbrush. Focus on the individual nozzle holes. 5. Rinse under running water. 6. Reattach the showerhead with fresh thread tape on the connection. 7. Run hot water for 2-3 minutes to flush through.
How Often Should You Descale?
In hard water areas, descale every 2-3 months. Perth’s northern suburbs and Adelaide’s north are very hard water zones. Monthly cleaning is normal there.
You’ll know it’s time when pressure drops. Nozzles spray at odd angles. White or grey crust builds around the nozzle holes.
Why Limescale Builds Up (and How to Slow It Down)
Every shower leaves a thin film of mineral residue. The harder the water, the faster scale builds up. Perth northern suburbs water can be 228 mg/L. Adelaide northern areas run above 120 mg/L (SA Water). That’s a lot of calcium and magnesium going through your showerhead every day.
Cleaning removes scale after it builds. A shower filter for hard water reduces the minerals before they reach your showerhead. With a filter in place, you still clean. But you do it far less often. The scale forms slowly because the water has less calcium and magnesium.
Removing limescale from shower glass and doors is a different job. See our guide on how to remove limescale from shower glass.
Quick Tips
- Do the vinegar soak at night. Leave it overnight for heavy build-up. Rinse in the morning.
- Wipe the showerhead dry after every shower. This slows residue build-up between cleans.
- Check the nozzle holes with a toothpick after soaking if they’re still partially blocked. A gentle poke clears them.
- Don’t use bleach on a blocked showerhead. It doesn’t dissolve mineral scale. It kills bacteria but doesn’t touch calcium deposits.