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Winterizing-Black Water Flush Line
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11-03-2015, 03:05 PM
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dieselguy
Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
Or ... if you winterize with air, just screw on the blowout plug to the black tank flush fitting just like you would to the city water fitting and give her a short blast.
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