This newly revised edition explains simply and clearly, in non-technical, everyday language, how to install all components of a plumbing system to comply not only with recent changes in the 2021 Uniform Plumbing Code and the International Plumbing Code, but with the requirements of the Americans with Disabilities Act. Originally written for working plumbers to assure safe, reliable, code-compliant plumbing installations that pass inspection the first time, Plumber's Handbook, because of its readability, accuracy and clear, simple diagrams, has become the textbook of choice for numerous schools preparing plumbing students for the plumber's exams.Now, with a set of questions for each chapter, full explanations for the answers, and with a 200-question sample exam in the back, this handbook is one of the best tools available for preparing for almost any plumbing journeyman, master or state-required plumbing contracting exam. Recently updated to 2021 editions of the UPC and IPC by David Gans, an experienced and certified journeyman plumber, city plumbing inspector/plans examiner as well as plumbing apprenticeship program instructor, this will be your go-to guide when you need to not only know the code requirements, but understand why they are important. This handbook effectively addresses how the two major plumbing codes accomplish the goal of safe and sanitary plumbing installations. In this edition, to help plumbers meet the detailed requirements of the ADA, we have included the full text of Chapter 6: Plumbing Elements And Facilities from the ADA Standards for Accessible Design.