You wipe the shower screen, you rinse the tap, and a week later the white film is back like it never left. Hard water does that. It's not dirt, so a normal wipe-over barely touches it.
Here's how to remove hard water stains from glass and taps using things already in the kitchen cupboard. It takes a bit of soaking time and very little elbow grease.
Why hard water leaves those marks
Water in Perth and the south-west carries a fair bit of dissolved calcium and magnesium. When a drop dries on glass or chrome, the water evaporates and the minerals stay behind. Do that a few hundred times and you get the cloudy, chalky film that spray-and-wipe won't shift.
Because the stain is mineral, you need something acidic to break it down. That's why white vinegar works so well, and why scrubbing alone mostly just scratches things.
What you'll need
- White vinegar
- A spray bottle
- Bicarbonate of soda (bicarb)
- A few soft microfibre cloths
- An old toothbrush
- Paper towel or old cloths for soaking
- A squeegee (for glass)
- Rubber gloves
How to remove hard water stains from glass
Step 1: Wet the glass with vinegar
Fill the spray bottle with equal parts white vinegar and warm water. Spray the whole screen or window until it's dripping wet.
Step 2: Let it sit
Leave it for 15 to 20 minutes. On thick, chalky buildup, spray it again halfway through so it doesn't dry out. The acid needs to stay wet to work.
Step 3: Scrub the stubborn patches
Sprinkle a little bicarb on a damp cloth and rub the worst spots in small circles. Don't press hard. The bicarb is a gentle abrasive, and it does the work for you.
Step 4: Rinse and squeegee
Rinse with clean water, then pull a squeegee down from the top in one clean pass at a time. Wipe the blade between strokes. Finish with a dry microfibre cloth for a streak-free shine.
How to remove hard water stains from taps
Taps are smaller, which makes them easier. The trick is holding the vinegar in place.
- Soak paper towel or a cloth in undiluted white vinegar.
- Wrap it around the tap and spout so it's fully covered.
- Leave it 30 minutes to an hour.
- Take it off and scrub the crevices around the base and aerator with the toothbrush.
- Rinse well and buff dry with a clean cloth.
For stubborn cases
If there's still a crust after the first go, make a paste with bicarb and a splash of vinegar, dab it on, and leave it 10 minutes before scrubbing. Repeat rather than scrubbing harder. Old buildup can take two rounds, and that's normal.
One caution: skip vinegar on natural stone, like marble or granite benchtops, and on brass or gold-finish taps. Acid can dull or etch them. Check the manufacturer's care advice first if you're not sure.
Keeping the stains from coming back
The easy win is drying. A quick squeegee of the shower screen after each shower takes about 30 seconds and stops the minerals settling in the first place. Keep a small cloth near the taps and give them a wipe when you're done at the basin.
A light spray of diluted vinegar once a week stops the film building up into something you need to soak. It's a two-minute job, and much better than the weekend battle with a toothbrush.
When it's time to call in help
Some stains have been there for years. Etched glass, old limescale inside shower fittings, and heavy buildup across a whole ensuite can take more time than it's worth to tackle yourself. That's where we come in. Our team handles the tricky bathroom work as part of our house cleaning service, and everything we do is backed by our satisfaction guarantee.
If you'd rather hand the job over, get a free quote and we'll take it from there.
