Cliff,

The Camelbak does not need to be cleaned like other water bladder systems. The bag and tube are coated with: "HydroGuard™ antimicrobial silver ion compound in tube and reservoir minimizes bacteria and fungus growth"

I'm sure that is what gives the Camelbaks the weird taste. On the other hand all we do is blow out the excess water from the tube and hang the bag with the Camelbak hanger to dry. We have never had to clean our bags or tubes. We have six in our family and use them often. My oldest son uses his every weekday.