Outdoor Sink Will Not Drain

[Jeanie]

Hi, We are new to the RV life. We have a 2020 Conquest 323 TBR. It has an outdoor kitchen. This sink will not drain. It does not drain onto the ground, it is connected to the gray tank. We cannot find a valve or switch or anything else to allow it to drain. The inside kitchen sink and bathroom sink drain just fine. Does anyone know what we need to do to have this working properly? My husband did remove the P trap to check it. It is not clogged. This RV is new and has never been used. I have searched everywhere for an answer. Even the dealership isn't very helpful about it. We would appreciate any help.

[skidrow]

Hi,
I have a 2019 Class C Conquest and the same thing. The outdoor sink wont drain.
I think there is a one way valve when working, allows water to drain. When the valve is not working the water will flow back and make the drain appear clogged.
Did you get yours repaired and was this the same issue??