Identify what the business actually operates
A septic tank, cesspit, treatment plant and industrial effluent holding tank are not interchangeable assets. A septic tank separates solids from wastewater before the liquid passes to its disposal system. A sealed cesspit stores sewage until collection, while a treatment plant processes wastewater using its installed treatment system. Industrial effluent holding tanks may contain materially different liquids. The installation type determines what must be removed and which processes or functions should continue afterwards.
Commercial sewage emptying on this page concerns off-mains sewage from occupied premises. Process effluent and separately stored industrial liquids require their own assessment. The fact that a business produces both sewage and process waste does not establish that the same system or collection route is appropriate for both.

