Job Description:

• 1) Removes roots, debris, and other refuse from clogged sewer lines and drains, using portable electric sewer cleaning machine, and repairs breaks in underground piping: Positions or disassembles sewer trap machine at sewer or drain outlet.

• 2) Removes drain cover, using wrench.

• 3) Installs rotary knives on flexible cable, mounted on reel of machine, according to diameter of pipe to be cleaned.

• 4) Starts machine to feed revolving cable into opening, stopping machine and changing knives as necessary to conform to diameter or contour of pipe.

• 5) Withdraws cable to deposit accumulated residue removed from pipe in containers for disposal.

• 6) Observes residue for evidence of mud, indicating broken sewer line.

• 7) Measures distance from sewer opening to suspected break, using plumbers' snake, tapeline, or by estimating position of cutting head within sewer.

• 8) Notifies coworkers to dig out ruptured line or digs out shallow sewers, using shovel.

• 9) Removes and replaces broken tile section or pipe, using caulking compound and cement to form watertight joint.

• 10) Replaces or directs replacement of earth.

• 11) Replaces dull knives and performs repairs on machine, using handtools.

• 12) May estimate cost of service to customer.

• 13) May clean sewage collection points and sanitary lines in streets and sewage plants.