Forum Discussion

Atlee's avatar
Atlee
Explorer II
Feb 22, 2018

By passed Black Tank Flush back flow preventer

The back flow preventer failed after 5 months of use. Was going to replace it yesterday, but @ $50, I decided no. Looked for a simple plastic elbow, but couldn't find one, so made a brass one. Also...
Paul_Clancy's avatar
Paul_Clancy
Explorer
Mar 24, 2018
The device on the bt flusher is a poor design. Usually cheapest of plastic that holds water and if/when the bt flush line is missed on a winterize it will crack and leak. Often behind a wall. Removing it and putting in an elbow and using external backflow valve is far better. BTDT

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