A clear sheet of plastic will make a solar still. Dig a hole. put container
in center, put plastic over hole (loose) hold down edges with rocks. 
Put small rock in center to create a funnel effect. Water will collect on
bottom side of plastic and drain down and collect in container.
If ground is not wet enough you can put other containers around center with
water in them for source. With a piece of plastic and a container 
you can collect distilled water. They sell (cheap) a solar panel (small) for
putting on dash of car to keep battery charged with this and a current
limiter 
(1 Mill amp) you could make a constant current CS generator. Throw in some
rechargeable batteries and you could make CS 24 hours a day.
 
  Bob