To pile on, ClO2 is much more effective against bacteria (a several-log improvement).

Quote:
The chlorine treatments:

Are more effective against cripto and Giardia,

Taste less, and

Do not leave stains in the water containers.

However, Do not fix it, if it is not broken. <img src="/forums/images/graemlins/grin.gif" alt="" />
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--Rick