Drian Cleaner, clear clogs from various types of drains and pipes such as floor drains, sinks, tubs, and urinals etc. Typically use equipment like hand snakes, high -velocity water jets, and sewer cameras for inspecting drain lines. More advanced positions have responsibilities involving technical service, such as repairing underground sewers and drains using excavation methods. Other duties include fixing frozen lines and steam thawing. You must maintain a safe work environment by following company rules and state local policies.