So In my country, If you want to buy a bottle of cocacola fanta etc. You can only buy it if you come with an empty bottle of the same product. This is a way of

So In my country, If you want to buy a bottle of cocacola fanta etc. You can only buy it if you come with an empty bottle of the same product. This is a way of life. The same thing can be done with bottle water. To buy bottle water, return an empty bottle of water. If you don't then you pay premium