Fair enough, Bob - sounds like you have your H2O figured out.
But next time you're out on the trail, time how long it takes you to get water from the river to your mouth. Bet you can't do it this fast.
Happy trails!
Full disclosure - I'm a GRAYL co-founder *Biased*
Great conversation, love the feedback, lots of very high quality water filters out there. Here's my story:
I love mountain bike camping - 3 or 4 of us, 30-40 miles per day, 3 or 4 days out, you can see a lot of country. For water last year, we...