"Get a NEW propane tank that has never had propane in it. Do not try to recycle an old tank because propane residue is explosive and that could be dangerous." - Coalport
Having worked designing safety critical applications for explosive atmospheres (including propane) I wholeheartedly agree! There is one video on U-Tube which makes my blood run cold - The guy takes an old propane tank, vents it briefly, then sets to work on it with an angle grinder! - It then goes through processes including roasting it over a gas hob!
He was just lucky, despite his stupidity.. If we are dished out with a luck allocation (no - I dont believe that we are! -) then he just wasted one of his lives!
Fred.
"One of the guys had his knuckles wrapped in cloth to, as he put it, make it less damaging on the hands." - Roy
Whacking anything is risky - I was unable to play the Djembi for a few weeks (my instructor made me sit and watch the lessons because he said I could do myself permanent damage) because, in my attempts to get ringing near the rim, I had wacked the rim too often..
Then I bought a Djembi at a drumming camp, which one master (not Kanyinda) claimed was cursed or posessed because my right hand came up with a rash, which developed into severe excema on my palm which I still suffer from today (almost 20 years now). It wasnt demons or curses to blame, when Kanyinda examined it he found that the animals hairs had not been completely removed, some had been shaved and presumably penetrated my skin causing a reaction.