When I dump my tanks, I always dump the black tank first. There's always some "stuff" in the pipe when I dump the grey. It usually clears quickly though. Could that be it?
Once the grey water gets going it clears up to just shower water.
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Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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