A few months ago my uncle died and his wife has given me some of his camping gear. I have some questions about some of this stuff and was hoping to find somekind of answers pertaining to it. My biggest concern is about three propane tanks-two are the 5 gallon size and one is a 3 gallon size (I think). They are all the "old style", kind'a rusty, and I believe they all have propane in them. Here's my problem: alot of people tell me that I can't use them because they are illegal and unsafe. Even a couple of the local propane dealers have told me they won't touch them, they said that I should take them to the nearest hazardous waste disposal unit to get rid of them. Any suggestions would be greatly appreciated Thanks in advance.