[RC one]

Then there's this, the Solar Still, one of my favorite ad lib survival devices:

with this you can purify the water out of a vehicles radiator and drink it. http://www.energywhiz.com/experiments/solar_still.htm

[Vendome]

There are two articles at the bottom of the original article from this post and in one of them they actually advise against a solar still.

Sheesh!

I don’t care how little water they produce anything is better than nothing

[B4Ranch]

I just did a Google search Your search - “antifreeze” site:www.energywhiz.com - did not match any documents.

I do not think that thing works to filter out antifreeze chemicals or else they would have mentioned that it did.