id does kinda bring up visons of the er
i like the idea, but having to carry two containers is silly, why cant you just put in dirty water, and drink from the clean side of the filter? its not like you can suck a whole lot thru anyway.
ive got a straw filter for hiking, you just dip a container in the creek, and drink through the straw like normal.
how does the zipper hold up to pressure? i break lots of lids from over tightening, cuz they alway seem to leak.
__________________
Le Crutan 
98 ec250 sixdays, doma, eline pipe guard, zokes shivers from a cr250,fredette racing chain slider, protaper withbarkbusters (SOLD)
FOR THE SECOND TIME
07 EC300 polisport headlight, acerbis taillight ltr pv cover and case saver,trailtech endurance,120z fww, g2 throttle,xr chain puck: