Do you buy bottled water or do you drink tap water?

Unfiltered tap water here. It was once top of the list of best water in Norway. It comes from a lake high in the granite hills above the town, above any agricultural or industrial activity and above any housing. It needs minimal treatment to remove suspended solids and that's about all they need to do to it before it is pumped into the mains.

I occasionally buy bottled water when I am travelling and camping in my car simply for the convenience.