Oil separator cleaning with a vacuum truck is a vital service that ensures proper functioning of the sewer system and helps prevent environmental contamination. Oil separators, or hydrocarbon interceptors, are devices installed in wastewater systems to capture and remove oil, gasoline, diesel, and other petroleum-based substances before the water is released into the sewer or nature. These interceptors are commonly found in industrial facilities, car washes, gas stations, garages, and parking lots.