practical knowledge and skills grounded in the real-world issues that face plumbing professionals. This proven resource was developed in partnership with the PHCC Educational Foundation, with curriculum and content created by educators and industry professionals. Building on the fundamentals covered in PLUMBING 101, this volume covers piping materials, sources, and distribution for potable water; water pipe sizing; cross-connection protection; water heaters; sewage disposal; drainage fixture units; building drains; stacks; and more. The Sixth Edition features two new chapters on communication skills and professionalism, and on fixture supports. A clear, straightforward writing style, realistic examples, and strong emphasis on hands-on applications make this text an invaluable resource for anyone entering or working in the plumbing industry.