Trenchless Sewer Line Replacement
What is Trenchless Sewer Repair?
Trenchless Pipe Repair is a process by which an expandable stainless steel sleeve is inserted into a damaged sewer pipe via a manhole. This requires no trench excavation. The sleeve is delivered to the damaged area of the pipe with a robotic CCTV crawler, where it is expanded and permanently locked into position.
3 Key Benefits of Trenchless Sewer Replacement
- Reduces Infiltration: Dilution of sewage due to groundwater infiltration decreases the efficiency of treatment.
- Reduces Time to Repair: No excavation is needed. Repairs can be made quickly.
- Reduces Costs: SUEZ can schedule repairs to cracks, holes, root intrusions, and leaky joints before they become costly emergencies.
SUEZ’ Trenchless Pipe Repair gets the job done without having to tear up roads to access underground pipe. That means pipes can be fixed within minutes, not hours or days. And SUEZ can schedule trenchless repairs to cracks, holes, root intrusions, and leaky joints before they become costly emergencies, without having to interrupt the flow through your collection system.
SUEZ’ Trenchless Pipe Repair is the most cost-effective way to combat infiltration – the seepage of groundwater into sewer pipes during heavy rains – a significant problem for older, compromised pipes.
How does SUEZ' Trenchless Pipe Repair work?
After accessing the sewer pipe network through a manhole or other existing access point, SUEZ workers insert an expandable stainless steel sleeve into the damaged pipe. SUEZ experts deliver the sleeve to the damaged area of the pipe with a robotic CCTV crawler. Once it arrives at the repair site, they permanently lock the sleeve into position using an inflatable packer. The packer is then deflated, and the robotic crawler is withdrawn.
Because the installation packer is hollow, the stainless steel sleeves can be installed while wastewater is still flowing. Also, because the trenchless pipe repair system is purely mechanical, no epoxy or resins needing cure times are used.
The stainless steel sleeves, which are warrantied for 50 years and are highly resistant to corrosion, are available from 6-inch to 32-inch circular pipe diameters and in lengths of 16-, 19- and 20 inches. For large trenchless sewer repairs, such as longitudinal cracks, multiple sleeves can be interleaved.