How does the sewer system work? What exactly happens with our waste water and with rainwater? What type of sewer is best in terms of the environment and climate change? What can you do if water flows into your house? Why do we pay sewage charges? These are just some questions relating to the sewer system. The website provides answers to all sewer questions.

The website is operated by the RIONED Foundation, the interest group for urban drainage concerns in the Netherlands.