There are some YouTube videos comparing the different sewer pipe end fitting flush valves. They would work great if they went straight into the tank. However the Montana has 3 bends in the pipe before reaching the black tank. Now IF you get a blocked sewer pipe, it could help with providing back pressure to break up the clog.
I do have the Valterra twist on gate valve. It prevents "surprises" when you take off the cap.
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Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
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