Cesspit emergency overflow

A cesspit emergency overflow is an urgent response to a sealed cesspit (cesspool) overflowing because it is full and has not been emptied in time. Unlike a septic tank, a cesspit has no outlet and must be emptied regularly by tanker. Cesspits are rare in Greater London but still found in some outer rural properties in Bromley, Havering and Enfield. Common causes include missed emptying schedule, increased occupancy beyond design capacity, and lid failure allowing rainwater ingress. Before the tanker arrives, occupants should stop water-using activities completely, keep clear of any overflow contamination, and document the issue. The service includes emergency tanker emptying, lid and integrity inspection, and a written report. Cesspits must not be allowed to discharge under the General Binding Rules, and overflow constitutes a regulatory breach reportable to the Environment Agency.