Michael Baugh wrote:
I use rain water in my unit.
Filtered through a dense weave sock.
No more calcium dust, such as from tap water.

Is that rain water from off your roof? That could have nasties in it
that the sock won't filter. I do know it's not good to drink; maybe
breathing a vapor cloud of it wouldn't be so hot either.

If you have a collection device that you can be sure is free of spores,
bird poop etc. then you're onto something. Rainwater's good stuff.

%mod%