Letter Re: 20 Pound Propane Tanks and Differing Valve Designs in the U.S.
Mr. Rawles; Saw a post concerning propane tanks dumped along roadways. People need to be careful if they go and salvage these propane tanks as the folks who make meth amphetamine ("meth") use the propane tanks to hold anhydrous ammonia to make the meth with. If the tank has been painted some color other than white and the valve on the tank looks bluish green then it has [or has had] anhydrous ammonia in it. The tanks have a tendency to explode as they are not designed for the pressures anhydrous ammonia put on the tank as it expands when …