Greg Lesher sent us his ebook on how to make tire based solar distillers, which work great with seawater or grey water. We recommend it. Here it is in his words:
I have figured out a way to use sea water or worse in the garden. One
could recycle 100% of the grey water from the home as distilled water
using no power or fossil fuels. And make the system using free used
tires and a few other cheep items available anywhere.
I have been messing around with solar stills for years but they are
not cheep to build and to grow a garden, out of the question because of
the cost alone.
Tires are a global problem, now I want 100′s for my use, and they are
more than happy to give them away! I put together an ebook at http://www.outback-taxidermy.com/Seawatergarden.
Or I can try and explain the process, but a pic is worth a thousand
words as in this case.