Californians are turning to vending machines for safer water. Are they being swindled?

Vended water is many times more expensive than tap water. And there isn't much evidence to show customers are getting the quality they're paying for

Customers stream into the parking lot of a San Diego strip mall, lining up behind a windmill-shaped vending machine that fills their jugs for 25 to 35 cents a gallon.

"The water that comes from the tap, I don't trust it, and it doesn't taste good," Miguel Martinez said on a recent afternoon, as he filled his bottle from the kiosk. Martinez lives in San Diego's nearby Shelltown neighborhood, an area located minutes from downtown where many immigrant families have landed.