Charlie Morgan wrote:

Here's a typical commecially available solar still. I feel these specs are a bit
on the optimistic side.

http://www.solaqua.com/solstils1.html


Here's a do-it-yourself version:

http://www.permapak.net/solarstill.htm

CWM

Interesting stuff. Not very suitable for a boat
though, and the output rate is way too low for a
watermaker. SolAqua (Spanish for SunWater btw)
claims that their Rainmaker 550 makes 1.5 gal/day
and is 60% thermally effecient by their
calculations. I guess that even 100% effeciency
wouldn't get them 3 gpd. Makes a 70 gpd RO
watermaker sound pretty good by comparison.

I started getting interested in this stuff after I
saw that little 70 gallon water tank on our new
boat.

Don W.