The internal diameters of relined sewers are about 90% of their original diameter.
It is important to carry out repairs on sewers prior to relining them to ensure any constrictions in the pipe are not exacerbated in the relined pipe.
Internal view of a relined sewer.
- Interflow Website (Sewer Relining Company)
- Kembla Watertech Website (Sewer Relining Company)
- Tyco Website (Sewer Relining Company)
- Rehabilitation of Wastewater Collection and Water Distribution Systems State of Technology Review Report USA EPA May 2009