A small piece of trivia: Pubs (an abbreviated form of 'Public House') in the UK are required by law to serve the public, including non-customers, fresh running water, as well as, allowing use of bathrooms, for free.
Most coffeshops in the US will gladly fill a water bottle with water. I've done this too many time to remember. I've never been turned down. It's not shopping and asking It's simply walking in and politely asking to have the bottle filled.
This outfit makes it easier to get water from other kinds of merchants I guess -the kind ho also have drinking water available.
