Why Sinks Get Calcium Stains and How to Fix Them

Those chalky white and greenish marks around your faucet and drain are calcium and mineral deposits left behind when hard water evaporates. Over time they build up, trap grime and dull the surface — and once the original finish is etched, ordinary cleaning won't bring the shine back.

Why it happens

Most tap water contains dissolved minerals like calcium and magnesium. Every time water sits or drips and dries, it leaves a thin mineral layer. In sinks that see constant use, those layers accumulate and slowly wear down the glaze.

How to fix it

• For light buildup, a non-abrasive soap-scum remover and a soft sponge can help.
• Dry the sink after use and keep standing water off the finish.
• For etched, stained or dull sinks, professional reglazing restores a smooth, glossy, easy-to-clean surface that resists future staining.

If your sink is past the point of cleaning, refinishing is a fast, affordable way to make it look brand new again.