I have a grasshopper 227 that has alot of hours and has given me great years of service. I have recently noticed a significant leak around the top of the right side hydraulic pump where the hoses are connected to the pump. Could this leak be from an O ring issue? I looked at the hoses and top of the pump and don't see any problems and the mower drives and handles just fine. The leak is not spraying when and when you are in motion it looks like it is weeping (bubbling) from the hose connection.
