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SEPTIC SYSTEMS HOME
GUIDE TO SEWER LINE REPLACEMENT
  Diagnosing a Blocked Drain
  When to Call a Plumber
  How to Locate the Main Building Drain
  How to Use a Power Snake on Building Drains
  How to Find Distance to Drain Blockage
  Determining Need for Replacement
  Replacing the Sewer Line, Step by Step
  Making Other Septic Repairs
  Installing the new sewer line
  Bedding the sewer line in Sand
  Final Backfill of the Sewer Line Trench
  Documenting Buried Components
  Final seeding and soil restoration
  Sewer or Septic Line Installation at Steep Sites
HOME BUYERS GUIDE to SEPTIC SYSTEMS
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SEPTIC TANK PUMPING SCHEDULE
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TANK PUMPING PROCEDURE
TANK INSPECTION PROCEDURE
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Photograph of installing plastic sewer drain line piping

Sewer Line Replacement Procedure - the importance of bedding piping in sand
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Step by step main drain line replacement, house to septic tank (or sewer)

The reason for sand under and around sewer piping during new drain installation

Our site offers impartial, unbiased advice without conflicts of interest. We will block advertisements which we discover or readers inform us are associated with bad business practices, false-advertising, or junk science. Our contact info is at inspect-ny.com/appointment.htm.

This article describes the use of sand around a sewer pipe during backfill when a sewer pipe or "drain line" is replaced. 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.

Citation of this article by reference to this website and brief quotation for the sole purpose of review are permitted. Use of this information at other websites, in books or pamphlets for sale is reserved to the author. © Copyright 2008 Daniel Friedman, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use the links at page left to navigate this document or to go to Other Website Topics. Green links at left show where you are in our document & website.

Use of sand to bed the new drain piping

Sand under and around a plastic sewer line protects it from breakage or penetration by sharp objects that may be nearby after backfill.

We were particularly concerned for the durability of the new piping in this installation because there was not much backfill available to cover the piping where it had to pass over shallow bedrock.

Not only to be in compliance with building codes but also because these pipes pass over shallow bedrock and could be damaged by future settlement or traffic, the excavator brought in a truckload of sand which was used to bed the new sewer line before final backfill over the piping.

A worker standing in the trench lifted each pipe section to assure that sand would be beneath the pipe to cushion it from rocks below.

Just covering the pipe on top with sand would be a poor practice.

Use links just below or at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website.

GUIDE TO SEWER LINE REPLACEMENT
  Diagnosing a Blocked Drain
  When to Call a Plumber
  How to Locate the Main Building Drain
  How to Use a Power Snake on Building Drains
  How to Find Distance to Drain Blockage
  Determining Need for Replacement
  Replacing the Sewer Line, Step by Step
  Making Other Septic Repairs
  Installing the new sewer line
  Bedding the sewer line in Sand
  Final Backfill of the Sewer Line Trench
  Final seeding and soil restoration
  Sewer or Septic Line Installation at Steep Sites

Technical Reviewers

Particular thanks are due to experts and also consumers who read these articles and suggest corrections, changes, and additions to the material.

Daniel Friedman - principal author
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
Technical reviewers are invited to comment or ask questions - contact us

More Information on Septic System Diagnosis, Maintenance, & Repair

Backups and Clogged Drains diagnosing septic backups and septic system failures versus clogged drains - key step in septic repair
HOW TO FIND A SEPTIC TANK
DRAINFIELD LOCATION GUIDE
SEPTIC VIDEOS assist in locating septic system or sewer line components
The Septic System Information Website home page for this topic
Septic Systems Inspection, Testing, & Maintenance- online textbook. Detailed how to inspect, maintain, repair information
The Home Buyer's Guide to Septic Systems
Septic Tank Pumping Guide: When, Why, How to pump the septic tank
Table of Required Septic & Well Clearances: Distances Between Septic System & Wells, Streams, Trees, etc.
Ten Steps to Keeping a Septic System Working, suggestions from the U.S. EPA, edits and additions by DJF
What is a Septic System An Engineer's View & Septic System FAQ's
Pennsylvania State Wastewater Treatment Fact Sheet SW-161, Septic System Failure: Diagnosis and Treatment

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Sewer Line Replacement Procedure - the importance of bedding piping in sand SepticAPedia ©

Use of sand to bed the new drain piping

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Sewer Line Replacement Procedure - the importance of bedding piping in sand
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