Yo. So a long time ago I bought a torch and two k tanks from a nice fella named Butch in San Diego, the problem with the tanks is on the collar, they say 'PROPERTY OF SAN DIEGO WELDING SUPPLY'

Airgas told me they wouldn't replace/fill them, but an independent company down the street helped me out.
They sold me an owner tank (for way too much goddamned money, and was later stolen [beside the point]) and told me that everytime their tank rack filled up they would fill my tanks.
I am wondering if you all know a good way to help me out with these things, I went to this company so frequently to change out my owner tank, and randomly get handed one, or both my SD tanks because the rack filled up.
Please help me. Should I scrap these tanks? It is not worth the hassle.