Quote:
Originally Posted by yardsale
I have been bugging my mechanic to install a second gate valve just below the black tank such that the problematic area is EMPTY until you are ready to dump. This would diminish the already limited capacity of the black tank but it would help. Mechanic says there isn't enough space to install it there.
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You may want to look at an early Escape 17B for inspiration, since those trailers had the black dump valve mounted that way. In this photo of a 2006 model the fiberglass area is washed out (overexposed) so it's hard to see any detail, but at least it shows the general configuration.
In this case the black valve output side connects directly to a combining Y facing outward, which is the final outlet; in the proposed configuration the valve output would connect to an elbow facing rearward, followed by the stock horizontal run and combining Y.