Go with the flow: do you need to filter US tap water?

Experts share best practices for considering water filters – whether you’re drinking municipally treated water or relying on a well Americans have a lot of questions about their drinking water.

How is it treated? What’s in it? Most importantly, is it safe? “I’ve even been out to eat where people overhear me talking about my work and come over to ask me a question about their tap water,” said Kimberly Parker, an…