According to this article, Pepsi admitted that Aquafina is tap water.

I try not to buy much bottled water, but in airports, and on road trips, I sometimes can’t avoid it. I like Aquafina because of their more sturdy, durable bottles, which I can refill – from tap water.

Of course, the more durable bottles also use much more oil, and are much more likely to last millennia before breaking down – so they are much worse for the environment. I really should not be buying them.

I have often argued that we should not be buying tap water. This admittance from Pepsi validates my opinion.

Water, anyone?