[fireman15]

Oh, and I am very sorry... I do applaud your out of the box line of thought. Chlorine gas that is used to treat water can react with gasses other than hydrogen that are also heavier than air. So your line of thought could merit.

[Openurmind]

You have absolutely no reason to apologize my friend. You stood on what you believed based on your skills and tool set. :)

That is to be highly respected from every source. To be honest I had to chase it down myself to make sure I was not full of crap yesterday. lol

You shared a compelling argument and I had to go make sure I was even on the right track myself. :)

What a freaky accident... It would be extremely difficult to try and replicate the perfect conditions for that to happen.