>> apart from small issues such as  Giardia

> Iodine doesn't kill Giardia?  Or just not in the timeframe allowed
> by this particular filter?

They say that Giardia is "resistant" to Iodine and has a 5 micron 
size. As the filter has a limited dwell time due to its suck through 
design it is probably less effective that something which allows eg 5 
minutes for Iodine action.


        RM

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