If your rivets are leaking I don't know about welding. I had a Tracker years ago that started leaking. The problem is the rivets have gotten loose and in doing so have enlarged the holes. I sent mine back to Bass Pro 3 or 4 times to get the rivets tightened up. It would be ok for a while then start leaking again. I guess you could weld each rivet to solve the problem but I don't know.