Re: Vented Sewer Cleanout?
Posted by nicktheplumber on December 31, 2003 at 20:04:57:
In response to Re: Vented Sewer Cleanout?
: There is no automatic "dump" valve that will do it.

Au contraire. There is a special cap that is meant to be installed on the curbside (sidewalk) cleanout that has a spring loaded diaphragm. If there is a backup from the sewer main, the diaphragm is opened and the crap floods the sidewalk rather than your home. My municipality (Oakland, CA) offers these to homeowners at a reasonable price.


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