You might want to looking at trail journals from the pct and cdt since the at does not go through higher altitudes that may be causing your bottles to leak. As for the east coast, if it’s leaking, the change in altitude is not the problem. If your out west and in exposed sun light all day, I would expect the bottle to pressurize due to the exposure. The at is a green tunnel with cooler temps. Even PA doesn’t compare to the pct and cdt’s southern parts. If you come to a conclusion, please be sure to post it on here.
As for boorah, though Polar Pure is good stuff and I knew a couple of people who used it, it still doesn’t kill cysts which are the little bastards that cause giradia. Just be carefull.
Though something like 75% of those who get giradia get it from self contamination. When your in Maine drinking from lakes that beaver live in and moose wade through all day or on the pct drinking out of a horse trough, be sure to take precautions with your drinking and cooking water and personal cleanliness and if you share your gorp, poor, never grab. Happy trails
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