1995 Fleetwood Tioga Montara - hot water tank leak

What top connection? On the outside you have the drain plug and up top you have a pressure valve. The inside of the tank has two connectors (inlet/outlet). All the plumbing parts are std/replaceable and found at most hardware stores. I wouldn't rush out an replace the hot water tank just because it's old - not if it's just a valve that needs replacing.