Refilling 16 oz propane bottle off a 20# tank

MrWizard wrote:
everything is explosive, if put under the right pressure and/or impact

coal dust. the first diesel engines used powered coal dust
stationary use, did not catch on until somebody redesigned the engine to use petroleum

those exploding videos are fun to watch, but way out of contex
burning or shooting things to make them explode

So you say, they may be pertinent to someone who has no idea of how explosive it can be and has no business fooling around with cylinders of unknown age and questionable quality. Pretty disappointing coming from a moderator who should understand the importance of safety in enjoying a pastime. Since I did not tell the OP they were going to blow themselves up or make wild claims about it being illegal or any other such nonsense your comments are pretty telling in that you have no concern for doing things safely. Not one word from you to the OP about making sure they understand how to do it correctly just that exploding 1 lb cylinders of LP videos are out of context. That's laughable