I'm not sure what the water is like in Westeros but here in the UK there's really no reason to avoid tap water at all. All you'll do if you drink bottled water is give yourself a weak immune system.
Up here in the wilds known as Scotland we get to drink good fresh highland water from our taps, much better than the recycled "hard" English sewage water
I'm not sure what the water is like in Westeros but here in the UK there's really no reason to avoid tap water at all. All you'll do if you drink bottled water is give yourself a weak immune system.
Drinking chemically treated water containing possible contaminants is not worth the small boost to my immune system which I could achieve quite easily through excerise/eating healthily and maybe even vitamins.