How can you make sea water fit for drinking?

Get yourself a simple distillation apparatus. It consists of a round bottom flask you put your sea water in, which then connects to a still head, and then a cold water condenser, an adapter and receiving flask. Heat the sea water to boiling, and then the pure water vapor will condense in the column, and collect in the receiving flask. The sea salts will be left behind in the original flask, and you will have nice pure water....example http://upload.wikimedia.org/wikipedia/commons/9/9c/Simple_distillation_apparatus.svg