Clean and repair septic tanks, sewer lines, or drains. May patch walls and partitions of tank, replace damaged drain tile, or repair breaks in underground piping.

Clean and disinfect domestic basements and other areas flooded by sewer stoppages. Ensure that repaired sewer line joints are tightly sealed before backfilling begins. Clean and repair septic tanks, sewer lines, or related structures such as manholes, culverts, and catch basins. Cover repaired pipes with dirt, and pack backfilled excavations, using air and gasoline tampers. Cut damaged sections of pipe with cutters, remove broken sections from ditches, and replace pipe sections, using pipe sleeves. Inspect manholes to locate sewer line stoppages. Install rotary knives on flexible cables mounted on machine reels, according to the diameters of pipes to be cleaned. Locate problems, using specially designed equipment, and mark where digging must occur to reach damaged tanks or pipes. Measure excavation sites, using plumbers' snakes, tapelines, or lengths of cutting heads within sewers, and mark areas for digging. Operate sewer cleaning equipment, including power rodders, high velocity water jets, sewer flushers, bucket machines, wayne balls, and vac-alls. Rotate cleaning rods manually, using turning pins. Start machines to feed revolving cables or rods into openings, stopping machines and changing knives to conform to pipe sizes. Withdraw cables from pipes and examine them for evidence of mud, roots, grease, and other deposits indicating broken or clogged sewer lines. Break asphalt and other pavement so that pipes can be accessed, using airhammers, picks, and shovels. Communicate with supervisors and other workers, using equipment such as wireless phones, pagers, or radio telephones. Dig out sewer lines manually, using shovels. Drive trucks to transport crews, materials, and equipment. Prepare and keep records of actions taken, including maintenance and repair work. Requisition or order tools and equipment. Service, adjust, and make minor repairs to equipment, machines, and attachments. Tap mainline sewers to install sewer saddles. Update sewer maps and manhole charts.

Mechanical -- Knowledge of machines and tools, including their designs, uses, repair, and maintenance.

Operation and Control -- Controlling operations of equipment or systems. Equipment Selection -- Determining the kind of tools and equipment needed to do a job. Installation -- Installing equipment, machines, wiring, or programs to meet specifications. Mathematics -- Using mathematics to solve problems. Repairing -- Repairing machines or systems using the needed tools. Reading Comprehension -- Understanding written sentences and paragraphs in work related documents.

Manual Dexterity -- The ability to quickly move your hand, your hand together with your arm, or your two hands to grasp, manipulate, or assemble objects.

Performing General Physical Activities -- Performing physical activities that require considerable use of your arms and legs and moving your whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials. Handling and Moving Objects -- Using hands and arms in handling, installing, positioning, and moving materials, and manipulating things. Controlling Machines and Processes -- Using either control mechanisms or direct physical activity to operate machines or processes (not including computers or vehicles). Inspecting Equipment, Structures, or Material -- Inspecting equipment, structures, or materials to identify the cause of errors or other problems or defects. Repairing and Maintaining Mechanical Equipment -- Servicing, repairing, adjusting, and testing machines, devices, moving parts, and equipment that operate primarily on the basis of mechanical (not electronic) principles. Getting Information -- Observing, receiving, and otherwise obtaining information from all relevant sources. Estimating the Quantifiable Characteristics of Products, Events, or Information -- Estimating sizes, distances, and quantities; or determining time, costs, resources, or materials needed to perform a work activity.