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 Septic main line
Author: paulauryn (VA)

Hi,We recently had what the emergency plumber called a "soft" blockag in our main line to our septic tank that caused a back up from that point into and through our toilets on the first level. He cleared the blockage and ran a camera checking to ensre the line was not damaged which it was not. Our insurance company would not be thrilled with another claim should we encounter another backup so I was wondering if there was an inexpensive way to prevent a backup into our home again?

We are on a septic system that is maintained and pumped per guidelines every 5 years. This is the first incident we have had in our 15 years in our home. The main line access port is on my rear patio. I heve removed the screw on cover and place it upside donas a temporary fix should there be another back up but I know this is not a long term solution.

I know there are back flow preventers for public main lines but was unsure if there were for septic systems and the emergency plumber was not sure either. Any help is appreciated.

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 Re: Septic main line
Author: hj (AZ)

A "backflow preventer" will do nothing to prevent a "flood" because it is to keep other people's sewage out of your house. You problem is your own sewage, so all a bfp would do is CAUSE the overflow if it malfunctioned.

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 Re: Septic main line
Author: packy (MA)

if the camera inspection found no bellies nor any other defects then there should be no more backups for many years (if at all).
any sort of backflow device will not help and also requires periodic maintenance. in that case you might as well snake the pipe regularly since you have an easy access cleanout.



Edited 1 times.

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 Re: Septic main line
Author: Wheelchair (IL)

Much depends on the size of your tank, and what the family flushes into the septic system. Septic education is paramount. If you "only" had a rare soft blockage, yes, it could happen again, depending on what the soft blockage consisted of. Is your septic system working as design?

I would not recommend any type backflow preventer. I will/can provider some resistance to the flow process and cause more soft blockages.

Your plumber had the best vantage to any issues as they were there, onsite, to see any possible issues.
Best Wishes

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