I think Brent Swain gives details in one of his books. Buildable for about
$1,000 Canadian

Only for my education....
I have read somewhere about "home made" watermakers... but I don't rember
where...
I have made my google homework... :-) No result.
Do you have any reference, link, info?
I am interested in one small, simple unit for a sailboat...

Tank you
Paolo