Hello, We own a 2014 FW Denali Dutchmen 2445RL Trail Edition 28 fifth. Our black tank flushing systems appears clogged. We believe that the One Way Valve supporting this function to be at fault but we cannot locate it in the RV. Any idea where we can find it?
I have a 2013 Dutchman Infinity. A few years ago while in Jal New Mexico mine froze. This effectively would not let water flow into the black tank to flush it out. The valve on mine was near the black tank as it went up to the top. I had to remove some stuff to get to it and it was at the end of my reach. Replaced it with a new one. These are required because the one way feature prevents sewage from contaminating the fresh water. Trace the flush water line to the tank. Itís probably right next to the black tank on a vertical line above the level of the tank. This prevents back flow in case of a malfunction. Good luck.