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From: Peter Joachim Unold <pjunold_at_daimi.au.dk>
subject: [Paddlewise] water filter?
Date: Sat, 28 Nov 1998 15:19:03 +0100 (MET)
Hello all

Does anyone have any experience with water-filters for normal
sea water?
Some months ago I saw a TV program, about some capsized sailor
in the south-sea, who had this small water-generator/cleaner
device. I remember he said: "it takes 1000 pumps, to get a small
cup of water". Whereas this sounds like a lot of work(you'll
sweat two cups of water to produce one), I'd like to hear some
comments one the quality of the produced water, and who produces
these things.

 best regards
  Peter





 

 
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From: Michael Neverdosky <MichaelN_at_cycat.com>
subject: Re: [Paddlewise] water filter?
Date: Sat, 28 Nov 1998 12:24:37 +0000
The general term for the type of unit you are talking about is
reverse osmosis.
Also refered to as desalinators, one company making them is PUR
(line over the U so it is pronounced as PURE), looking in my
"Boat US" catalog I find;

A) Manual Survivor-06  produces 1 quart per hour, 2.5x5x8"
   shipping weight 4 lbs. ~$500 US

B) Manual Survivor-35 produces 1.2 gallon per hour, 3.5x5.5x22"
   shipping weight 10 lbs. ~$1400 US

They also make units that run on 12VDC power and save you the 
pumping if you have electrical power.

The water quality is excellent, as good as the best bottle water
you can buy in a store.

There are spare parts and maintainence considerations if you plan
to use them on a repeated basis.
Either you have to use them frequently or treat them properly before
storage. Not a problem for a unit packed in an emergency kit.

michael

pjunold_at_daimi.au.dk wrote:
> 
> Hello all
> 
> Does anyone have any experience with water-filters for normal
> sea water?
> Some months ago I saw a TV program, about some capsized sailor
> in the south-sea, who had this small water-generator/cleaner
> device. I remember he said: "it takes 1000 pumps, to get a small
> cup of water". Whereas this sounds like a lot of work(you'll
> sweat two cups of water to produce one),
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