check valves in forest river cedar creek 5th wheel

#1
I have a problem with my kitchen sink. I over filled the grey tank and the water backed up into the kitchen sink. I drained the tank and now the sink will not empty. I'm reading that there is probable a 'in line check valve'. But I can not seem to located it. Under the coach is a huge skid plate, and the pipe from the sink goes below the floor. The storage compartment is accessable, and I see the pipe, but no where can I see where this valve could be easily changed out. I've read that it should be easy to access the valve. I can't find any kind of diagram telling me where the valve is or how to access it. Anyone have any ideas?? Thanks
 
#2
Re: check valves in forest river cedar creek 5th wheel

It should be located behind the sink just under the counter top. If you can see you drain pipes, it will be a fitting leading to it.
 
Top