What is wwt - septic conv?

The BIOROCK septic tank conversion option is ideal when your existing septic tank is discharging untreated effluent directly to a watercourse. Drainpower service and clean septic tanks. wwt - Free download as Powerpoint Presentation (. What is required to convert a conventional septic tank and soakbed system to an aerobic treatment system or ATU? Is it possible to change over a regular septic. Curtain drains or intercept drains can protect septic drainfields in areas of wet soils or surface and subsurface groundwater.