> I consider my bottles to be empty when the burner on the Coleman stove > or the lanterns go out. So, is that empty or not? > > There may be situations where that just means the pressure is too low to > push the gas into the burner or something. So, is that empty enough, or > do I need to do something else, like heat the bottle and continue to > drain, or some other process, until the bottle is "really empty" as > opposed to just "seemingly empty". It would be difficult to define when it is really "empty", since some percentage of this gas is present even in the air that we inhale every second, but after the burner goes out at room temperature, there might still be enough gas left to explode when tank is heated (as somebody wrote earlier). This is physics; gas will expand, increasing the pressure, when heated. Drilling a hole or cutting a slot through will ensure that it is, lets put it that way, *empty enough*. Though, I'm worried about possible explosion ignited by the spark when drilling or cutting. There shouldn't be any spark in normal process of drilling by normal human :-), but who knows... *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Fri Dec 17 2004 - 11:21:45 PST
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