In article , HeyBub wrote:
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.

Right. You can put almost any (relatively clear) water in a clear plastic
bottle, put the bottle in the sun for a few hours, and, presto, sterilized
water.

Except that the main germicidal wavelngths of UV (UVC of wavelength
around 240-280 nm) are highly blocked by the ozone layer even when the
ozone layer is weakened, and these wavelengths also have a high rate of
being blocked by plastics that are transparent when thick enough to make
bottles from such plastics.

- Don Klipstein )