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-----Original Message----- From: Alex Sent: 7/27/2001 8:30:00 AM To: sewertalk Subject: Re: backflow preventor regarding backflow preventor device may I ask the group - neoprene valve by RED VALVE vs other devices what is a better product - any comments thanks alex "Murch, Rick (Swr)" <rmurch@ci.omaha.ne.us> wrote in message news:710@sewertalk... > > We are having sanitary sewer backups along a trunk line. We are considering > installing a new sewer parallel to the trunk to collect the sewage from the > homes along the trunk. The new sewer would tie into the trunk line further > downstream. I have concerns that the trunk line will backup into the new > sewer, therefore we are considering installing some sort of backflow > preventor on the new line prior to tying into the trunk line. I have some > concerns about this approach. Namely that sewage may settle out in the new > line, that sewage may become lodged in the backflow preventor, given the > flatness of the new line that a long length of the new sewer will backup > prior to achieving sufficient head to open the backflow preventor and that > the backflow preventor may become a maintenance headache. Does anyone have > any experience using this approach? Any experience with specific backflow > preventors that work well in this application? The only other option seems > to be a lift station. Please comment. > > >

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