Outside sewer line settled, causing drain issues at house

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Martin1b

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My outside line going to my lagoon has settled at the house, causing the boot connecting the house to it to stretch (see attached). This also causes the opening between the house and the outside line to be at about half capacity, causing plugs (we had a plug this morning, which is how I discovered this).

Rather than digging the line out about 5 feet out to correct the settling, is there an easier way to fix this?

Please note: The line from the house is ABS and the line outside is PVC.

septic.jpg
 

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Jadnashua

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While you can use that fitting underground, it may not be ideal for the specific issue you're seeing...it requires that the line is really well supported with proper backfill and compression to keep things from moving. that will usually change the slope, and can become a major problem.
 

Reach4

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I am not sure the picture shows a problem. What we may be seeing is a bell-end pipe with a short length of pipe glued into the bell with clear primer and pvc cement. :cool:

Then the flex coupling is grabbing the short pipe. :D

Now Martin, what do you see that is not compatible with my proposed interpretation? What I don't see in the photo is a leak.

What you may be saying that there is an elevation drop at the pvc pipe, causing some discontinuity that stuff hangs up on. If that is the case, can you uncover some pipe, and shove more sand under the PVC? Or maybe the pvc pipe in the photo is smaller than the upstream pipe causing a discontinuity.
 
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Martin1b

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Yes, i'm saying the latter. The PVC pipe appears to have dropped about 3 inches, reducing the drain like the attached images. Raising it would increase slope, which is fine. Is my best option to dig up the pipe so I can raise it by shoving sand underneath?
 

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Reach4

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Yes, i'm saying the latter. The PVC pipe appears to have dropped about 3 inches, reducing the drain like the attached images. Raising it would increase slope, which is fine. Is my best option to dig up the pipe so I can raise it by shoving sand underneath?
I think so.

That pipe's pretty shallow, and sand makes for easy digging.
 

wwhitney

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Seems to me if the house side is constrained against movement (looks to be coming out of concrete?) then the joint would be best made with a shielded coupling that would resist an offset.

Cheers, Wayne
 
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