People who buy bottled water are fish at life.

[MicroBob]

I use one of the Britta filter things in a pitcher for my tap-water.
I've occasionally drank straight from the tap before but I can definitely taste the difference. No idea if it makes it healthier but I feel better about it.

I don't think the cities that have slightly unhealthier water are especially interested in telling you about it.

Haven't read the Stossel stuff but I would have to think some of the tap-water out there isn't exactly the healthiest in the world.