I'm always amazed that people buy water. Anybody who comes to my property is welcome to take as much free clean and pure tasting rain water as they can drive away with. I won't charge even a single sat.
Discussion
日本は水道水が飲める。飲めるけど都会の人は飲まない。
How do you turn rainwater drinkable? Reverse osmosis?
it shouldn't be surprising that people lack access to potable water. it's a tragedy, but very common.
Few places are like this. For those places it is not suprising. But most places have potable tap water for free.
rain water? you obviously don't live in Ohio.