A short time back there was a discussion on the nastys that live in fresh
water.
I have crews living and working in the Sudan, one of the most disease
ridden, nasty little critter infested places in the world.
The crews use Aqua Sun filtration systems to provide clean water for
drinking, cooking, dish and food washing, and personal hygiene. These
systems run about $1700 (with spares), produce 60 gallons per hour and run
on either 12v or the optional solar panel and are mounted in a pelican type
case roughly the size of a small suitcase.
They do not work for salt water, but the discussion mentioned above got me
thinking about you freshwater sailors and how convenient it would be to make
your own at roughly half the price of a desalinating (sp?) water maker and
about 20 times the output.
I'm not affiliated with the company, just thought I'd pass the idea along.
www.firs****erinc.com/responder.html
MMC