Thanks riverman
I'm off to north Wales so may pop in a mountaineering shop to see
what's about.

M

"riverman" wrote in message
...

"Matt" wrote in message
...
do these hand held water purifiers work on river or lake water
as when on long stay bivvies fetching extra or carrying enough
water is a real pain.

Definately, that's what they were MADE for!

When I got mine, I took it right to my fishtank and pumped out a cupful of
water: it was delicious! My girlfriend was aghast at how I could drink
*fishtank* water, and I said 'Sweetie, when the time comes to use this,
I'll
be overjoyed to find a source of water that's fresh enough to have fish
in
it!" You can filter mud puddles, swamps, almost anything. Be sure to get
the
filters with the smallest membranes: the porcelain ones are the best; and
to
avoid viruses you should still treat with iodine or bleach, or boil the
water for 5 minutes. Unless you go for the real expensive ones that have
impregnated treatments in them.

There's a lot of research out there about them, and all filters are not
equal. Read some reviews.

--riverman