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What the Heck is this?
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02-17-2017, 03:55 PM
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PackerFan
Montana Master
Join Date: Feb 2004
Location: Pahrump
Posts: 2,523
M.O.C. #1081
That is your Black Tank Flush - Back Flow Preventer Valve.
Sometimes they might leak a little. I removed mine and connected the two pipes together.
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