Quoted from Manimal:If the tank has a pinhole leak, then it is a ticking time bomb and should be replaced. If you have ever seen one let go in a shop, you will understand why I say that. Not worth the few bucks you would be saving.
Yeah, I sat on a product liability jury for a large commercial compressor manufacturer. A manifold (basically, a 3' long L-shaped exhaust pipe) that flew off of a compressor under test. It flew 30 feet through the air and hit a guy in the head.