If you have only a smaller amount of fresh water, it is possible to survive with little ill effects if you mix fresh and salt water in a 2:3 ratio (respectively

If you have only a smaller amount of fresh water, it is possible to survive with little ill effects if you mix fresh and salt water in a 2:3 ratio (respectively). http://en.wikipedia.org/wiki/Seawater#Human_consumption_of_seawater http://en.wikipedia.org/wiki/Seawater#Human_consumption_of_s...