looks quite easy to contaminate the clean side with the unfiltered side while handling the thing. Your hands are also always involved, with most risk of disease coming from poor personal hygiene anyway, not what's in the water itself. I'd hate to have to use this system to filter 2 gallons for a 2 person dry camp away from a lake. and how do I get it into my large water bags? Oh, you carry a funnel, too. And then I want a mix drink - wait, now I need another bottle.
Different target audience, I guess. It's more for the trail runner dude who needs to be UL while still hip and trendy, plus can't afford a week of foamy poop disposition.
reminds me to finally buy a new cartridge for my Hiker Pro. Three summers and two people drinking from one filter, so she's pretty plugged up by now.
