5 Tips for Removing Calcium Scale from Tile

Use a mild acid cleaner Muriatic acid diluted 10:1 with water works fast on calcium scale. Apply with a sponge or spray bottle, let it sit a minute, scrub with a soft brush, then rinse.

Never let acid dry on tile If the acid dries, it etches the tile finish. Work in small sections and rinse thoroughly.

Try a pumice stone for stubborn spots Keep the stone wet and rub gently on wet tile. It wears down scale without scratching glazed surfaces. Never use it dry.

Protect grout from acid Acid eats cementitious grout quickly. Mask off grout lines or avoid direct contact.

Prevent scale with proper water chemistry Balanced pool or water chemistry stops scale from forming in the first place.