I use BOTH SteriPen Adventurer and MicroPur chlorine dioxoide tablets.

STERIPEN ADVENTURER > for my bike bottle for IMMEDIATE pure water so I can always have it to mix in electrolyte drink powders. (coffee filter used as a pre-filter)

KATADYN MICROPUR TABLETS > for my hydration bladder at the evening refill so I have water ready for the next day. Plus it cleans out bacteria in the drink tube. (coffee filter used as a pre-filter)


(And for cooking water I just bring it to a good rolling boil for at least 30 seconds.)

Eric
P.S. Bacteria & viruses, like people, seem to be inversely proportional to the square of the distance from the roads and the cube of the distance above them.
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"There are no comfortable backpacks. Some are just less uncomfortable than others."