I recently addressed biomat development and its importance in treating septic tank effluent. In gravity distribution systems, the biomat distributes effluent across the soil treatment area. Until the biomat is fully developed, treatment efficiency is reduced due to preferential flow patterns in natural soil. To avoid this time lag in treatment and to better manage and control the application of effluent, pressure distribution is used.
By adding a pump and pressure distribution network to the system, sewage effluent is applied over the entire infiltrative surface of the soil treatment area from the outset without relying on development of a biomat
