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Old 08-09-2017, 07:36 AM   #4
jeff57
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Join Date: Dec 2015
Location: Minnesota
Posts: 57
We had the same problem in our previous camper (2014 Laredo) and had the dealer look into the problem at the end of that camping season. It turns out the check-valve in the black tank flush line was installed backwards at the factory. Since we had the camper for less than a year, this was a warranty fix.
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Jeff
2017 Premier 26RBPR
2016 F-150 XLT SCrew 4x4 w/3.5 EcoBoost & MaxTow
Previous: 2014 F150 SCrew 4x4 w/3.5 EcoBoost; 2014 Laredo 274RB

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