Bingo! Something about that silver ion must be the ticket to keeping the water tasting "normal". In any case, I prefer the camelback to the bottles, although I always have at least one full, unopened bottle in the motherlode, which kinda solves the gauging problems too.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)