I just realized that our new Momentum 21G has separate black and grey drains and I'm trying to figure out why. I not looking forward to taking the stinky slinky off the black drain without running the grey water through it like all other RVs I've had. Yes, I know I have a black tank flush, but in my opinion, that won't flush the drain tube as well as a couple of showers worth of grey water will. Also, having to re-attach the drain pipe mid cleanout is not convenient either.
Anyone else curious about this design?
Anyone else curious about this design?
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