According to Jayco, my outdoor sink drains into the black tank..No issues with it. It's odd that they didn't plumb it to the grey tank, but I prefer this actually. Anyway, it's not a 5er, so I'm sure that's of no help at all..
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2016 27BHS Elite
2012 F-150 EcoBoost / Max Tow (Sold)
2017 'Blue Jeans' 6.2 F-250 Lariat 4.3 gears.
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