As a EU citizen I always buy my water bottled instead of from the tap, not only does it taste better… but my family used to have a water distiller when I was growing up and we sometimes put tap water inside of it and after the distilling process the residue left was disgusting and gooey, even with some rust laced in (this was in the Côte d’Azur for context) in comparison most good quality bottled water just left a trace mineral residue. Safe to say I’d rather drink mineral residue over rust!