Okay, this is just a suggestion, so feel free to disregard it. If you are a vegan for ethical reasons, then you probably want to cause the least amount of harm possible when you make a decision such as what water to drink. In my opinion it is more harmful to buy bottled water than it is to drink non-vegan tap water. The reason is that bottled water is taken from resevoirs that, until the water bottling company started taking from them, were open for public use. The water was free until some company decided that they could make a profit from it. Also, those resevoirs are quickly depleted by bottling companies. Recently Nestle was ordered to stop pumping water from a resevoir here in Michigan because it was causing water shortages. I realize that by drinking tap water and paying your water bill you are giving money to a company that gives money to a company that gives money to a company that kills animals. But by buying bottled water you are giving money to a company that is profiting form a resource that should be free at the expense of people who rely on that resource. Consider the consequences: a dead animal or, eventually, a complete lack of free water. I know the choice is unpleasant, but by the least harm principle, I encourage you to consider tap water.