Sewage tanker emergency callout

A sewage tanker emergency callout is the emergency attendance of a vacuum tanker to empty overflowing septic tanks, cesspits, pump stations or grease traps. Across Greater London, tanker emergencies are concentrated in outer boroughs with off-mains drainage (Bromley, Havering, parts of Enfield), and in commercial properties with grease traps or pump wet wells. Common causes include missed scheduled empties, equipment failure, or sudden increased loads. Before the tanker arrives, occupants should stop water-using activities, ensure tanker access to the tank location, and document the issue. The service includes vehicle attendance (typically within two to four hours in Greater London depending on traffic and capacity), tank emptying with measured volume, basic system inspection, and a written disposal record. Waste is taken to a licensed treatment works under the Environment Agency Waste Carrier Licence held by the operator.