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Default UV for killing bacteria in water

wrote:
What's the cleanest (from the harmful crap like bacteria/lead/etc)
bottled water anyone? Bay area tap water has high counts of bacteria &
floride. And is it true a simple UV light will kill 99.9% of bacteria
in water? TIA.


For bacteria and flouride, go with an RO filter system. You can buy them
at Costco for about $150.

UV light does kill bacteria but there's no need to use UV on municipal
water. The big advantage of UV is that it kills viruses that are too
small to be filtered out. They're useful if you're drinking water in
foreign countries, or in some back-country applications (i.e. there was
a warning by one river in Yellowstone about viruses in the water). Back
country filters don't kill viruses, but you can get a UV Steripen for
that purpose.