If the smell of vinegar makes you wince, lemon juice is your cheerful sidekick. It’s basically the same chemical magic—tartaric acid—but with a summer vibe. Rubbing a lemon half on your faucet or showerhead is like giving your plumbing a citrus facial. The mineral deposits fizz and dissolve, leaving behind a scent that screams “fresh laundry” instead of “science experiment.”
How To Reduce Hardness In Boiler Water at Ian Milligan blog
I had a showerhead that looked like a fossilized coral reef. After a lemon rubdown and a rinse, the water pressure jumped from a sad trickle to a proper waterfall. My morning shower went from “meh” to “ahhhh” in five minutes flat.