Service laterals may be lined before or after the sewer main has been lined. The lateral liner that extends from the sewer main to the sewer lateral cleanout located at the property line. If a sewer cleanout does not exist at the property boundary, one will be installed prior to the lateral lining process, free of charge. Service laterals are lined in the same manner as sewers mains, but with equipment made especially for the service lateral.
If a cleanout does not exist at the property line a vacuum excavation method may be used to install one. As seen in the picture below, a 24” diameter hole is created by vacuuming out to the depth of the service lateral and installing a vertical cleanout pipe that will allow maintenance access in the future.
If a cleanout can not be installed using the vacuum extraction method, then the traditional open cut method becomes necessary. The open cut method normally requires an approximately 5-foot by 5-foot pit.
If the service lateral cannot be brought to code by the lining method, the contractor will use an open-trench method to install a clean-out and new service lateral. In the event that the open-trench method is used, trees, shrubbery, sidewalks, curbs and gutters may be disturbed. WSSC will, at no cost its customers, restore the disturbed area as close to its original condition as possible when the construction activities are completed. Trees that must be removed may be replaced with tree saplings.