RudysWorldExplorerJul 10, 2013Holding tank vent clogged or obstructed?When emptying the gray tank I noticed that it will flow fairly well then slow, followed by a whoosh sound and then drain completely. Also, after dumping the black tank I am noticing an odor. After rea...Show More
-Gramps-ExplorerJul 11, 2013I have found that the gray tank empties a lot faster if I leave the black tank valve open while emptying the gray tank.
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