Abstract: Deformed pipes used for lining host pipes are provided with internal and external inserts to maintain generally U-shaped cross-sectional configuration of the pipe ends. When the pipes are transported to an installation site, the thermoplastic pipe ends with inserts applied match one another, enabling the pipe ends to be fused to one another. Upon locating the pipes within the host pipe, the interior inserts can be removed by floating the inserts through an open end of the pipe or using a “pig” drawn through the pipe.