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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...
drsteve's avatar
drsteve
Explorer
Mar 09, 2018
bshgto1 wrote:
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So what`s wrong with this one. Seems cheap enough and you can cut it in anywhere along the line.Home Depot $15.00 Shark Bite check valve.


A backflow preventer protects your potable water. A check valve controls flow but it is not absolute. A check valve is not an appropriate substitute for a backflow preventer.

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