Hal wrote:

On Thu, 20 Mar 2008 19:25:56 EDT, Chip wrote:

This allows NO chlorine or other killing
chemicals to be needed for pure clean safe swimming water.

This doesn't make pure clean safe swimming water for humans either.
Ask your doctor. Ask your health department. Ask your lawyer before
you invite a neighbor to swim with you.

Is this what America's come to? No, not using chlorine doesn't mean that
your pond will be clean, but getting legal advice before swimming??? I'd
trust a well filtered semi-natural pond before most public beaches... but
then, these days, most public beaches are closed every summer because of
coliform issues.
--
derek