Vent under sink cause of smelly trailer?
My trailer smells gross come summer time. Was gone 3 weeks and come home to that sewer smell. To me it smells like gray tank. Pretty sure my P traps are still filled with water. It must be the kit...
Forum Discussion
If you have a black tank flush you could have a bad back flow preventer, my last 5th Wheel had this device mount under the bathroom sink.
