Guide to Final Site Work after Sewer Line Replacement InspectAPedia® -
Step by step main drain line replacement, house to septic tank (or sewer)
Final site restoration guide after sewer or septic pipe replacement
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This article describes the final steps in site restoration work after a building sewer pipe or "drain line" is replaced.We present an actual case study, illustrated with photos of each step in the diagnosis and replacement of a blocked
sewer line.
The waste line in this case was found to be blocked, damaged, old,
and needing replacement in the course of an attempt to clear a blocked drain between the house and septic tank.
Technical reviewers are welcome and are listed at "References."
This is a chapter of Inspecting, Testing, & Maintaining Residential Septic Systems an online book on septic systems. Also see Backups and Clogged Drains diagnosing septic backups and septic system failures versus clogged drains.
Final seeding and soil restoration after sewer line replacement
The contractor agreed to remove the old concrete sidewalk that had been a long-standing slip-trip hazard down this hill. Having them cart off those chunks of concrete was a bonus to the job.
We also asked the contractor to leave the final fill mounded slightly "high" over the areas of sewer line trench excavation,so that as the backfill settled we wouldn't see a ditch running down the property.
As soon as the contractors and their backhoe left the site, we scouted up an iron rake, picked out the big rocks and scraps of old orangeburg pipe or clay pipe that had been left, and removed the large rocks.
We put down a mix of fast-growing seed as well as permanent grass seed and kept the site watered. If we'd been in a rainy season we'd have also needed to put down straw or fabric to keep our seed from washing off of the hill.
In less than two weeks our muddy work site was beginning to look like a grassy lawn again.
Having used durable, smooth-interior, hubless plastic drain line piping and having
made the connections tight
we expect the new waste line between this house and its septic tank to remain intact for many years.
Having tight leak proof drain lines not only is required for sanitation, it also avoids
attracting invading tree roots.
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Thanks to Thomas Gleason, excavators, Poughkeepsie, NY 845-454-3730, for the excavating work at the project photo documented here in September 2006
Thanks to Cleveland Plumbing, the prime plumbing contractor, Staatsburgh, NY 845-485-7700 for the plumbing work and drain clog diagnosis work documented here in September 2006
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Pennsylvania State Wastewater Treatment Fact Sheet SW-161, Septic System Failure: Diagnosis and Treatment
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