Jan Vreeburg is a specialist in the field of drinking water and wastewater pipe systems in the urban environment. He has been working at KWR since 1989 where he has dedicated most of his time to drinking water distribution infrastructure. He developed the concept of self-cleaning distribution networks, together with the associated understanding of the dynamics of particles and of targeted measures, such as cleaning, improved treatment, measurement protocols like the Resuspension Potential and the move towards consumption modelling, and valve location and maintenance. These concepts provided the basis for the implementation of significant improvements by water companies, both in terms of the robustness of the system and water quality, but mostly with regards to investment and maintenance costs. Jan has more than 85 scientific publications and numerous scientific reports to his name. During 2001-2012, Jan was also active at TU Delft, where he set up a new curriculum in the field of water distribution systems. In the same period he received his doctorate on the Discoloured Water phenomenon. Since 2012, Jan has also worked at Wageningen University and Research (WUR) in the area of infrastructures for urban water services. He is strongly focused on the development of a new concept for the collection and transport of domestic wastewater, which ultimately should bring about significant improvements in the recovery of resources and energy from the wastewater stream. The concept is captured in the title, ‘Water Out, Shit In’, which aims to create a domestic wastewater stream that is as concentrated as possible, so that all stakeholders (individual citizens, municipalities and waterboards) can benefit. The connection with the practical application occurs in the Green Street, or the Future Street, approach, in which practical-scale research can be done and experience built up in living labs. Since May 2016, Jan has also been honorary professor at Exeter University in the UK.