Originally Posted by Meeks
This actually happened with our AS the first time I went to test dump (with just clean water in the tanks). I pulled the valve handle and it just kept coming! Ha! There it was in my hand connected to.....nothing!
I brought the AS to the dealer and felt silly with how simple the fix was (Uhhhhhh, I could have done that). The Service Manager used a needle-nosed pliers, reached in through the black rubber membrane cover, and pulled out the valve stem just a bit. He reattached the valve handle to the valve stem with a cotter pin, clipped the cotter pin ends, cut a small slit in the black rubber membrane to allow the cotter pin to move in and out, and voila!
Maybe I am not clear on how these valves are made.
Also, no doubt the operating rod arrangement differs on different model trailers.
I wouldn't have a problem dealing with the situation if something in the rod linkage broke and there was something I could get hold of with pliers to open the slide.
But I am assuming what can happen is that what you call the "stem" of the valve breaks loose from the valve slide leaving nothing to get hold of to pull the slide.
Maybe if this ever happens, there might be a way to cut away part of the plastic housing on the valve (without causing a leak) just enough to grab the blade with vise grips and pull it open to drain the tank prior to unbolting the whole valve assembly.
Hope I never have to find out, but I think that is something I would be looking to try!