Black tank flush

[JoeDiver]

I know this has probably been beat to death, but we are getting ready to do our first big move after 6 months in the same spot. I am running out of time and have tried to search everywhere. I do not see anything on my Edge 397ED that says black tank flush. I have the selector that says normal, city, and sanitize winterize. I am thinking the sanitize/winterize is what I need to do the black tank flush????
Any help would be great.

 

[Dahillbilly]

the black tank flush should be a single hose connection port, not part of the selector valve you mentioned.

 

[JoeDiver]

the black tank flush should be a single hose connection port, not part of the selector valve you mentioned.

I am an idiot, I found it, and as soon as I did I remembered I went through this whole thing last time. It is right behind the water filter I hung from the fresh water supply. LOL. thanks man