This manual is a standard work for education and training. With the 10th edition, you receive an up-to-date summary of wastewater engineering expertise, adapted to the technical developments of recent years. New features include a more comprehensive presentation of the function and design of electric motors, as well as electrical safety testing of systems, including repeat testing. For the first time, the authors also address the legal consequences of operational malfunctions and the responsibilities in the event of water law violations.