The compli 1200 is provided with a large tank and has specifically been designed for the disposal of sewage from flats and industrial plants where sewage flow is continuous. For ease of installation the unit is provided with variable height inlet 560 to 700 mm. The control unit is provided with mains dependent alarm and a volt-free contact for collective fault signal. The compli 600 has the same tank volume, but provided with a one-pump system.