Watch: DIY Small Desalination Still
Russ Chastain 12.15.17
So you need drinking water, but all you can find is salt water? No problem. Just desalinate the water. You know, separate the water from the salt.
Place a pair of bottles mouth-to-mouth, after having put salt water into one bottle. Heat the water up so it boils. Steam will move into the other bottle, and if that bottle is cooler than the boiling one, the steam will condense back into water–sans salt.