Sewer rehabilitation is the process of repairing and restoring existing sewer systems to improve their functionality and extend their lifespan. This can involve various techniques, such as pipe lining, which uses a resin-coated tube to create a new pipe within the old one, or trenchless technology, which minimizes surface disruption during repairs. The goal of sewer rehabilitation is to prevent leaks, reduce blockages, and enhance overall system performance. By addressing issues like corrosion, cracks, and root intrusion, municipalities can ensure cleaner water flow and protect the environment, ultimately benefiting public health and infrastructure sustainability.