2 litres of WATER or..... i dont think the other twin stuck to another fluid in particular, just a variation of things.
2 litres of WATER or..... I stick with water because if I drink anything else it completely puts me off water
2 litres of WATER or..... Have always drunk water, even as a kid, but i dont go overboard, 2 litres tops a day as i dont believe you gain anything from drinking more, especially if its hot as all you do is sweat more.
2 litres of WATER or..... Water for me mainly, its the only thing that really quenches my thirst. I drink tea and pure orange juice as well.