First, a terrifying fact: hard water contains calcium and magnesium ions that clump together like bad high school friends. They leave scale on your pipes, make your soap turn into sad little scum balls, and turn your hair into something resembling a straw broom.
One study found that 85% of U.S. homes have hard water. That’s basically everyone except maybe those lucky folks living in a cloud.
You need a water softener. Think of it as bouncer that kicks out the calcium and magnesium before they start a riot in your plumbing.