Nibbles44
It's foreigners & others who don't trust or know that Britains tap water is safe to drink. Had some tenants who moved out leaving lots of water bottles, they used it for drinking & cooking. Tap water for them was only for baths & showers & washing things.
When I worked in Bavarian mountains, the water to the premises was pumped up from an underground well. It wasn't 100% safe, but after 1-2 days with the trots (getting used to it) I was ok with drinking it for the rest of the entire year.
A Chinese (mainland) girl, a new arrival at a niece’s boarding school, had ordered so many cartons of bottled water before she arrived, that the entrance was blocked!
It transpired that she believed that tap water made your hair fall out. And maybe it did in the part of China she came from, but the school staff soon put her straight about U.K. tap water.

