Vinegar is the superstar of hard water removal. It’s acidic. That acid dissolves the calcium like sugar in tea. Science is cool.
Grab a spray bottle. Fill it with half white vinegar and half water. Don’t use the fancy balsamic—save that for your salad.
Spray the mixture onto your faucets. Let it sit for 5-10 minutes. You’ll see the scale start to bubble and fizz. It’s working.
After the wait, scrub with a soft cloth or an old toothbrush. Be gentle. You don’t want to scratch your chrome. Rinse with water and dry it off.
For really stubborn buildup, soak a paper towel in vinegar. Wrap it around the faucet like a mummy. Leave it for an hour. Bam—clean victory.
Battle the Shower Head
Your shower head is probably a limescale monster. Water spits out in weird directions? That’s mineral blockage.
Take it off if you can. Put it in a plastic bag filled with pure vinegar. Tie the bag tight with a rubber band.
Let it soak overnight. In the morning, run hot water through it for a minute. Watch the crud fly out. It’s oddly satisfying.
How To Clean Hard Water Build Up On Faucet at Isaac Oppen blog
No removable head? Fill a bag with vinegar, tape it over the head, and soak it in place. Careful not to ruin your tile grout with dripping acid.