Sbarrkum had written something on bottled water and reading it set off a train of thought.
There was a time, when we were very small, when the standard advice given was that water should always be boiled. Tourists and rare visitors from overseas were repeatedly cautioned as to the dangers of unboiled water.
When traveling, the only safe thing to drink (or so we were told) were the bottled soft drinks; Elephant House or the odd Pure Beverages bottle.Vendors on trains would cry "Barrley Barrrley", a short form for the popular Orange Barley and which, in practice meant any carbonated soft drink. In the worst of situations, tea could be considered an option; although it usually came out of grimy kettles or a metal cup, at least the water should have been boiled.
Fruit juice was unknown, but king coconut could sometimes be found. People did not travel widely so there was no market catering for travelers as such, one had to try ones luck at the small shops (called 'boutiques') that served the people of the area.
Wayside taps were a plenty, but were supposed to be only for washing or topping up the radiator of a car, which tended to boil on long trips.
If someone said that we had to pay for water we would have thought them quite mad. Water was always free. Now bottled water, even in small homes is common. I think, on a per litre basis, bottled water almost as expensive as petrol.
How times have changed.