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Paranoia. We are trying to prepare the boat for cruising and will be filling with rain and jerry canned water from unknown sources. I'll be filtering the jerry canned water via a transfer pump for water down to about 5 microns, but would also like something filtering the water after it's been in the tank.
I don't want to end-up like this guy
, but out the other end!
Thats an entirely different situation than filling from a domestic supply.... and its still a relatively poor choice. 1,0ÁM or better 2,0ÁM--->0,45ÁM ("absolute" or 100% filtration rather than a 'nominal' or arbitrary ÁM rating) is the usual standard for filtration from 'unknown' sources. Biologic contamination is best satisfied by filtration before it enters the tank, where it 'multiplies'. A filtration system within a distribution system is a 'microbiologic concentrator'.
BTW - enjoy your waterborne illnesses.
Last edited by RichH; 10-04-2010 at 03:18 PM.