sewerage system cleaning operator job

Who is a sewerage system cleaning operator and what do they do? This operator is a worker responsible for cleaning and repairing sewers and related waste water systems and plant.
What are the activities of the sewerage system cleaning operator job? Manual and machine cleaning and repairing of sewers, sewer equipment and the simpler equipment of waste-water treatment plants (he/she also does maintenance work there).
Where is it done and under what conditions? This job is done in the environment of sewers and waste-water treatment systems and therefore affected by bad smells, dirt, chemical substances and changing weather conditions. There are some elements of risk involved in working in sewers.
What tools/equipment do they use? Various machinery and equipment, craft hand tools and other manually operated items.
What do you need to succeed? Basic qualifications for this job include education to skilled craft level or on-the-job training. Common sense about health and safety at work.