New and updated features of this title Series-wide revisions REVISED: A greater focus on service, across modules, ensures that the most relevant job skills are covered. This reorientation reflects the fact that more plumbing work is geared toward service. REVISED: Modern equipment, tools, approaches and best practices have been incorporated into both the text and art. Examples include press fittings and the latest PEX connection methods. NEW: A new, improved design builds upon the visual appearance and readability of the material. Content changes based on industry updates EXPANDED: New information from the NASCLA Contractors Guide to Business, Law and Project Management was added to the module Business Principles for Plumbers (02401). This module also includes expanded coverage of unexpected costs and warranties. UPDATED: The most up-to-date terminology and codes now appear in the modules Water Pressure Booster and Recirculation Systems (02403) and Indirect and Special Waste (02404).

EXPANDED: New exam questions were added to module 02403, along with added content on storage tanks.