Repair of these sewer mains by far is the largest Town project ever embarked upon. The Town utilized the most economical and least invasive technique, which is relining. Relining is a process in which an epoxy coated liner is pulled through the main and inflated and cured in place with steam creating a PVC like pipe inside the existing pipe.
Through televising the mains, it was discovered that a portion of the sewer lateral that extends from the house was deteriorating also. To repair this, a clean-out was installed and a liner was pulled between the clean-out and main.
In addition to the lining, leaky manholes are being repaired by grouting and installing a concrete liner where appropriate.
It is estimated that these fixes will prevent several million gallons of water from entering our sewage system each year, and it extends the life of the sewer main for at least 50 years.