[Shaner]

Hi,
I'm new to this forum, with a lot of RV experience. But never had a problem with my tank valves. Is there a way to manually open the black tank valve once the underbody cover is dropped. The black valve has always been hard to pull open, but now it will not open the tank to flush the black water. I need to get it emptied to service it.

Help! We live in our RV and it's just impossible to take it to the dealer to service it.