Which water do we drink?

Well it appears from the poll that 82% of people who voted drink bottled water, i myself drink tap water, in the summer its nice chilled, i have not suffered any ill effects - yet, so i will stick with it.
It is recommended that men drink about 3 litres of water a day and women 2.2 litres,
and in a hot climate you should drink more, that is a lot of plastic bottles to recycle or better still not use, so think about your carbon footprint and wean yourself onto tap water, start with a couple of glasses a day and gradually build it up, you'll be fine.