On Tue, 15 Jul 2003, John Rodgers wrote:

> Don't know about the cleaning part, but in addition to chlorine based
> bleach, iodine works, and so does hydrogen peroxiide and Ozone. Ozone is
> the treatment of choice for water in Europe, whereas here in the US we
> use gaseos chlorine for treatment in the water treatment plants.

Where I live, the water is first sterilized with either ozone or UV (I
can't recall which right now), but then chlorine is added for continuing
protection when the water sits in the water mains and pipes.

David Brodbeck, N8SRE
'82 Diesel Westfalia
'94 Honda Civic Si