Prepare 8 inch HDPE Pipe for Pipe Bursting Installation
After the two excavations have been made and are completely safe to both workers and the public we then prepare the trenchless sewer pipe. In this case with this sewer line replacement project for the City of San Francisco we were replacing a damaged 8″ clay sewer line that was damaged by tree roots. The pipe used is an 8″ HDPE pipe (High-density polyethylene pipe) that we will fuse together to make one continuous length of pipe. The pipe that our plumbing technicians fuse together will never leak, never break and will never allow tree roots to enter, it is the perfect sewer line.
Trenchless Sewer Replacement Preparing HDPE Pipe
This trenchless sewer replacement project in San Francisco was approximately 60 feet long and up to 10 feet deep. After the HDPE pipe was fused together the plumbers then attached a metal brace with a cone shaped head that breaks the old pipe apart as it is pulled through the clay sewer line.
Trenchless Sewer Replacement San Francisco Installing Steel Head To Burst Old Sewer Pipe
The apparatus is then attached to a 100 foot long steel cable which is fed through the old clay pipe under ground between the two excavations. This steel cable is attached to the the 60 ton hydraulic ram that when powered will pull the cable through the sewer in-turn pulling the new trenchless sewer pipe between the two excavations.
Trenchless Sewer Replacement San Francisco Steel Cable Ready To Pull Pipe Go To Step 3
