Municipal Gravity Technician

The relining operation begins with remote closed circuit television CCTV robotic inspection. Using robotic crawlers equipped with pan, tilt, and optical zoom cameras, the technician inspects the interior sewer barrel, logging defects according to NASSCO Pipeline Assessment Certification Program PACP standards. Before relining, the technician drives high torque pneumatic robotic cutters through the pipe to mill away intrusive tree roots, heavy mineral scale, and protruding lateral service connections. The technician then winches a thermosetting resin saturated polyester or fiberglass tube through the existing pipe, inverting it with water or air pressure to tightly adhere to the host pipe walls before curing the resin into a rigid, jointless, corrosion resistant structural pipe using hot water, steam, or UV light banks.

Following the cure cycle, the technician re introduces robotic milling cutters inside the newly relined pipe to remotely reinstate concealed sewer lateral connections from inside the main, re opening branch sewer lines for residences and commercial buildings without digging a single trench. While robotic CCTV cameras record footage and computer consoles monitor curing temperature curves, the mechanical operation of high pressure water inversion drums, navigating robotic cutting heads through offset joints, and ensuring gas tight end seals in deep, hazardous sewer manholes require skilled, courageous human field technicians.

At 07:00, the trenchless technician arrives on a bustling urban downtown street where an 80 meter length of 375 millimeter vitrified clay sewer main is collapsing five meters beneath a major intersection. Rather than tearing up the asphalt and shutting down traffic for weeks, the technician prepares to install a fiberglass CIPP structural liner. After setting up traffic barriers and deploying continuous gas monitors into the manhole, the technician guides an Ibak robotic cutter into the sewer, remotely trimming away jagged protruding root balls and mineral encrustations while monitoring the video display in the control truck. Once the pipe is

cleaned, the team winches a pre impregnated fiberglass liner down into the launch manhole. Inflating the liner with compressed air, it expands tightly against the host pipe walls. The technician inserts an ultraviolet light train into the pressurized tube, pulling the bank of high intensity lamps at a rate of one meter per minute while onboard infrared cameras monitor exotherm surface temperatures to ensure complete resin polymerization. Two hours later, a rock solid, jointless new pipe exists inside the old host main. The technician finishes the shift by driving the.

Municipal gravity sewer trenchless relining technicians are specialized trenchless civil rehabilitation technicians and underground pipeline specialists who rehabilitate aged, cracked, and root infiltrated municipal sewer and storm mains without excavating roads or disrupting urban traffic. Operating specialized cured in place pipe CIPP mobile rigs, steam boilers, ultraviolet UV curing light trains, and robotic milling crawlers, these technicians install seamless, resin impregnated structural liners inside collapsing subterranean pipes ranging from 150 to over 1,200 millimeters in diameter.

Core responsibilities include operate pan and tilt robotic cctv crawlers to inspect underground sewer mains, coding structural defects according to nassco standards., operational coordination, and ensuring strict adherence to Kenyan statutory frameworks and quality standards.

Key organizations hiring for this role include Kenya Bureau of Standards KEBS, National Construction Authority NCA, KenGen Kenya Electricity Generating Company, Safaricom PLC, alongside expanding opportunities in Nairobi, Mombasa, Kisumu, and regional infrastructure projects.

Municipal Gravity Technician Specialist, Senior Municipal Gravity Technician, Municipal Gravity Technician Lead, Municipal Gravity Technician Consultant

Following the cure cycle, the technician re introduces robotic milling cutters inside the newly relined pipe to remotely reinstate concealed sewer lateral connections from inside the main, re opening branch sewer lines for residences and commercial buildings without digging a single trench. While robotic CCTV cameras record footage and computer consoles monitor curing temperature curves, the mechanical operation of high pressure water inversion drums, navigating robotic cutting heads through offset joints, and ensuring gas tight end seals in deep, hazardous sewer manholes require skilled, courageous human field technicians. Employment opportunities concentrate across major industrial, commercial, and financial hubs including Nairobi, Mombasa, Kisumu, Nakuru, and Eldoret, alongside specialized regional project sites.