According to a cleaning pro.

Dealing with hard water stains in your toilet? These left behind mineral deposits can make your toilet look incredibly dark and dingy and be even harder to get rid of the longer they sit. If you live ...

Enjoy the brand-new toilet feeling again. Dealing with hard water stains in your toilet? These left behind mineral deposits can make your toilet look incredibly dark and dingy and be even harder to ...

Add Yahoo as a preferred source to see more of our stories on Google. Credit: Getty Images Dealing with hard water stains in your toilet? These left behind mineral deposits can make your toilet look ...

Cleaning the toilet: It's the one chore that no one likes to do, but must be done regularly to prevent stains. Cleaning the toilet bowl isn't the most pleasant household chore on the list, but ...