Originally Posted by namusmc65
I could be wrong but I think I read somewhere that when you use the black tank flush, make sure your dump valve is open. Not sure about that but my few memory cells I have left are bringing me back to that point.
That is true. The manual and Jayco recommend you leave the valve open. The reasoning is that if you over fill, you get a very large mess as the refuse begins to come up through the toilet. There are a few of us on here who are rebellious and leave the valve closed, but I would say our biggest recommendation if you do this is DO NOT WALK AWAY. It's too easy for a spouse, a child, a neighbor, a falling leaf, whatever, to distract us, and we could end up leaving the valve closed and the tank rinse on resulting in a bad situation.
2014 Jay Flight 28 BHBE
2015 RAM 2500 6.4L HEMI, Tradesman 4x4, 3.73
Blue Ox SwayPro (BXW 1503)
Upgraded from an REI internal frame backpack and a Eureka 1/2 dome tent!