Hope someone can set my mind at ease. I have a 2014 Arctic Fox 5'er and have had it out a couple of times. When I use the Black Tank Flush I'm not sure if it's working. I can hear the water running...
In mine I let the water run for 5 minutes with the valve open. By the end, the water coming out is clear. It is amazing the change from the initial opening to the time I turn the water and close it.