Awright.
Well-noted for not wanting to get into the icky part of working a coach, the 'flush' (being polite) in this ol' coach was not working as noted on other threads.
Since it is, well kinda one of those things a person needs, got out the manuals, and started looking around at different wires and tubes and pipes. (Cue the Chorus!).
For two days in trying to figure this thing out, and getting multiple emails from a former Plastic Guy, I was determined.
Turns out that the Microphor flush needs 12v power and air pressure to work. Since every coach is different (and this one was modified) and the wiring made no sense at all it was apparent that there MUST be a way to get this thing working properly.
TA-DA!
The retrofitted Microphor has its own pancake air compressor and there was an unlabelled toggle switch. Flipped it on, the air compressor kicked in and Voile! fixed the problem and now good to go (y'know).
OK.
Gimme some of them tools. Gonna change out the injectors after I polish the inside of the turbo. Lemme at 'em.
Toldja you wouldn't believe it.