We do not drink our tap water…It is overloaded with Calcium which might sound like it is heathly but ours is far too much that stones could be a serious occurance… very hard is the water and leaves white particles on everything…Even the Car when husband washes it he has to use the water from the water butts to rinse off the white streaks…These Devon people should really not be in this state with todays so called checks etc…