The Junction between the mainline and lateral pipes has been identified as the weakest point in a sewer system. Most problems here are caused by fractures, differential loading pressures and what is commonly known in the industry as hammer taps. These junctions are structurally unsound. Until now, a reliable, trenchless, structural, water-tight repair for this key component of the sewer system was unavailable. The T-Liner System allows for the reconstruction of the mainline section and the lateral pipe with the installation of a one-piece T-Liner. 

There is no joining of the two separate liners required. The T-Liner is inserted through the mainline pipe and no excavation is necessary. Once positioned at the junction, the mainline portion is inflated and the lateral liner is inverted up the old lateral pipe. The result is a one-piece, structural seal for the sewer system junction. This is the completed structural repair and total restoration of a typical lateral to main junction....a proven no-dig solution to one of the collection system's greatest rehabilitation challenges.

The mainline and lateral liners have been installed simultaneously as a one piece T-Liner. This provides a durable, smooth transition at the lateral/main connection and a 360° seal that is impervious to water penetration. The T-Liner's bond on both sides and throughout the connection assures optimal structural integrity against future inflow/infiltration. All of the old failed seals, cracks, and breaks are effectively repaired by the T-Liner. Surface disruption is eliminated because no excavation is required.

Ease, convenience durability economy, and effectiveness: all part of what makes T-Liner the most intelligent and realistic choice for no-dig restoration. Without the right solution, costs for long-term pipe restoration would soon be out of control. Fortunately, the T-Liner is that solution.