Lecture
This lecture discusses the importance of water supply and wastewater drainage in modern society, focusing on the Swiss context where citizens consume an average of 160 liters of water daily. It explains the different systems for wastewater evacuation, the impact of damaged sewage systems on the environment, and the responsibilities of property owners in maintaining proper drainage systems to prevent contamination and costly damages. The lecture also covers methods for inspecting and repairing drainage systems, emphasizing the need for regular maintenance to avoid significant issues and ensure the value of the property.