Originally Posted by vettenuts
Is the connection to the pipe the standard bayonet fitting? If the coach is a 99 it would be hard to believe there isn't a solution to this as the previous owner couldn't have had this happen every time they dumped the tank. Was the bayonet fitting you used old or brand new? Did it break off the tabs on the fitting?
This was a new I purchased for the home. The tabs did not break! I watched in horror as the bayonet expanded knocking one of the tabs out of position and then the other popped right off. It was my inexperience that triggered a series of events, as is the case with most accidents. When I saw the compartment full of debris, I grabbed the hose and put it on leading out the side instead of unscrewing the opening straight down. I didn't want to spill all of this on the ground, but I believe this was the cause of the bayonet not holding.