curious to know...
when to retire a hydration bladder?
no visible leaks, typical signature plastic hydration system smell
(despite regular and thorough cleaning after each and every use-- with hot soapy water sand baking soda),it sees only regular 3 season use
(heavy in summer, mild to moderate in spring and fall),
and virtually none in winter...
it's a good 8 years old, but still kickin'.
in the name of health, when to purchase anew?
what are others doing?