leak in kitchen drain

[DoingitEarly]

We have a 2010 3400RL and have discovered water coming out of some where in the kitchen drain where it goes into the wall, any ideas
how it access this part of the Monty??

[Bill-N-Donna]

Is your drain open?
It could be backing up from the galley tank. Those valves have been deceptive to a lot of people and they like to hide in un-usual places as well.

[DoingitEarly]

Yes I thought of that and have left the drain open the last 24 hours. Still leaks.

[snfexpress]

Sounds like a joint is not glued properly. The plumbing was this in our 2006 3400 and is the same in our 2009 340RLQ: From the drain, the pipe goes into the cabinet that houses the hot water heater. At this point it is connected to a vertical pipe. This pipe is a vent and also the drain into the tank. Hope this helps.