Yeah. Its intended for an emergency repair. Out 4 wheeling and kick a rock into the tank sort of thing. Not your problem I know. The only other option I know of is some stuff that Eastwood sells or used to sell. Its a rubber that you dump in an swish around the inside. I don't know how it works, but the tank would have to come out anyway, so thats why I say get a new one. As I say I'd bet money its leaking from where the sending unit goes in. There a big rubber O-ring there and they get hard with this new gas we're using. Its easy to remove the sending unit.