Kelly Hanson East wrote:This has been rehashed, but it is actually a Federal crime to transport these after refilling.
It is sort of like the "Do not remove this label under penalty of law" tags, it is poorly explained. It is not illegal to transport them yourself, only commercial carriers. It is foolish, IMHO. The valves have only so many cycles before failure. The disposable tanks are not heat treated and lack the elasticity to be filled time and again without rupturing and there is the rust problem, as these tanks are not lined.
Unfortunately, it is one of those improper behaviors, that are self reinforcing. Like crossing the street without looking both ways, sometimes you are better off taking your parents word for it.
~Rich