Thanks for all the replies. Lots of info to think about. I really wanted to use the Hot portion of the water if I could and thought since those lines are there than I could just install it there. That being said, I could just Y off the City hose and have a dedicated spray hose its just super cold and Im sure the kids would hate it, but I'm over that lol.
Also I am very intrigued that the Spray Port on the back maybe a Black Tank flush. They did not mention that at the Dealer and its just labeled "Spray-Port" with a quick connect Female, a Coiled Blue hose with a Hose fitting on the end. Can anyone verify if this could be a Flush? I do not recall if I have tried to use it with water in the tank, usually I am on full hookups and city water is run to the camper. Do spray ports only run off tank water?