The trend towards urbanisation is increasing the demand for housing. However, living space in urban centres is limited. As a result, there is a continued rise in high-rise projects in big cities. Finding cost-effective and reliable drainage systems for high-rise buildings often presents a challenge for building owners, planners and architects. The flow-optimised Geberit SuperTube technology creates a continuous column of air in the discharge pipe and thus saves space because of no additional ventilation pipes, smaller diameters and no slope up to 6 meters in horizontal pipelines.