At least in Vienna / Austria you can get excellent free tap water from the mountains on the street all over the town. (hydrants) https://www.wien.info/en/sights

At least in Vienna / Austria you can get excellent free tap water from the mountains on the street all over the town. (hydrants) https://www.wien.info/en/sightseeing/green-vienna/viennese-water https://www.wien.info/en/sightseeing/green-vienna/viennese-w...