If there’s one subject that shows up in my inbox more often than any other, it has to be rust. Ugly, orange-ish stains on tubs, showers, toilets, washing machines, sinks and even stainless steel. One ...

We may earn a commission from links on this page. Within a few seconds of walking into the bathroom of my new apartment, I knew I'd be living in one of the majority of American homes with hard water.