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Sep 9, 2016 at 22:06 comment added DrMoishe Pippik True, and it is more effective than halogenation or ozonation when water has suspended particulates. It's just not efficient.
Sep 9, 2016 at 16:52 comment added MaxW Yes, but a boiling alert for eating/drinking is often issued by water companies when contamination of the treated water supply is suspected. It is effective.
Jun 10, 2016 at 4:06 history answered DrMoishe Pippik CC BY-SA 3.0