Just changed the valve on my black tank. It was a pretty easy job. I noticed the old valve started to pull very hard to open , but easy to close. When I got the old valve out the problem was obvious. The rubber gasket was being pulled while opening buy the valve. New gaskets was probably all it needed. New one works great and I would hate to think of one breaking while tank is full. That would be a bad day!
06 Adventurer 38R