(09-12-2019, 02:22 PM)mesenteria Wrote: Some former soviet bloc countries still have the odd issue with tap water safety.  When I was peace-keeping in Bosnia in 2001, there were at least three occasions when notices were put up at our bathroom sinks by the WSPOL Techs [Water, Sanitation, Petroleum & Other Liquids] warning us not to even risk brushing our teeth with the water currently coming from the taps.  A day later, and the signs came down.  So, yes, absolutely, there are times and places where brushing teeth with tap water, or drinking it, might be very risky.  And that happens in North American, Central America, South America, Australia, Africa, and both poles as well.

We aren't talking about brushing one's teeth or about drinking the water.  We're talking about EVAPORATING it.  Any water is suitable for that purpose.  Naturally, one wouldn't put sewage water in our machines; that's a given.  But if you're worried about safety, Melman, who is a scientist dealing with biology, spelled it out rather simply in his last post.  Read it again.  I also spelled it out in my reply to Sueann.  Water molecules cannot support pathogens.  That's all you get in vapour.  Vapour is all you get when you evaporate water.  Evaporated water is safe.  

For gawd's sake, folks...use tap water.  It's FREE.  Just rinse the next morning and refill with a new supply from the tap.  Still FREE.  Still SAFE.