Aleigha Sloan can't remember ever drinking a glass of water from the tap at her home.
That is "absolutely dangerous," the 17-year-old says, wrinkling her nose and making a face at the thought.
"You just don't touch that tap water unless absolutely necessary. I mean, like showers and things — you have to do what you have to do. But other than that, no," she says. "I don't know anybody that does."