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