A distribution box is a passive flow-splitting device installed downstream of the septic tank's outlet and upstream of the leach field laterals. It receives pre-treated, settled effluent and routes it into two or more perforated lateral pipes that discharge into the soil absorption. Presentation of the advantages of distribution box for rural gravity fed water supply is quickly presented in Doc n° ST3-S01 “Presentation of PROCEED general standards”. The hydraulic involved in distribution box is presented in Doc n° MF4-S40 “Crest flow in distribution box” All the details can be. A distribution box — commonly abbreviated as a D-box — is a concrete, plastic, or fiberglass chamber positioned between a septic tank and a drain field to divide clarified effluent into equal flows across multiple leach lines. The primary function of the D-box is to direct the effluent to multiple drain lines, ensuring that the wastewater is evenly. Speed is 0 near to the pipe wall du the friction of the water against the pipe wall. The amount of water that can pass into one pipe with the pressurized flow s much greater than with the other type of flow.
