Fully automatic WWTP with mobile control and the possibility of integration into a smart home which can be supplemented with a box for automatic dewatering and thickening of sludge. Through testing the function of the plant was verified after interruption of inflow for up to 6 months and it is therefore suitable for family houses and cottages. The WWTP continuously measures the amount of water and then automatically limits the amount of air in plant which means a reduction in the electricity consumed. WWTP in the DUO variant with a treated water tank can be used for watering the garden.