Posted 1/4/2009 20:25 (#557562 - in reply to #557270) Subject: Not the only reason
Central Illinois
Years ago our Farm Supply used to rent out all their NH3 tanks in the fall for the Farmer's use for LP. They stopped this practice when it was discovered that when the LP was siphoned out, and any resdue was left in the tank, the mixture of the two could produce Cyanide gas.