That’s what causes the tough-to-remove stains. That pesky ring marking ... This abrasive pumice stone stick scrubs away the hard water ring, without scratching the ceramic bowl.

If hard water stains give you a hard time when you clean, learn how to get rid of them once and for all. It’s a bit strange ...

An eco-friendly hard water stain remover Even if you have years of stain and mineral build-up that you're just about ready to give up on, this industrial-strength cleaner will take them out.