This pump/tank unit can be connected to the outlet of a septic tank using a std 100mm NB sewer pipe, or connected using a smaller pipe. The unit consists of an 82 Litre tank & pump combo featuring: Polypropylene Tank with ribbed sides for added strength, plus the ribs will anchor the tank if it is partially concreted in place. The tank has a heavy duty polypropylene lid, which is strong enough to walk on, plus the lid is full size allowing easy access into the tank for service. Installed in the tank is a Fully submersible type TPO1376 drainage pump with integral on/off float switch, a 350watt 230v single phase motor, with built in overload and automatic reset, plus fitted with 10m cable with std 3pin plug. Pump max head 7m, and max flow is 6000L/Hr. On the pump outlet is fitted a brass non-return valve, and pipe nut for easy removal/inspection. The non-return valve prevents back-flow when the pump stops. Tank outlet pipe connection is screwed 1"BSP, into which you can screw in a wide variety of fittings/pipe. Also supplied is a PVC vent pipe connection. A larger heavy duty 1Hp pump type VH100/32MF can also be supplied for higher pressures at an extra cost of $155.00