Chapter 18 Preparing for Plumbing System Installation ................... 279 First Rough ........................................ 279 Second Rough .................................... 284 Planning the DWV Piping ..................... 284 Locating Fixture Drains ........................ 287 Locating Water Supply Piping ................ 289 Modifications to the Structure ................ 291 Chapter 19 DWV Pipe and Fitting Installation .................................. 297 Measuring Pipe................................... 297 Overview of DWV Installation ................ 299 Installing DWV Plastic Pipe and Fittings ...313 Installing Copper Pipe and Fittings ..........316 Installing Galvanized and Black Iron Pipe .................................317 Installing Cast-Iron Pipe ........................318 Chapter 20 Installing Water Supply Piping .. 323 Overview of Water Supply Pipe and Fitting Installation ............................. 323 Installing PVC and CPVC Plastic Pipe and Fittings ..................................... 336 Installing Copper Pipe and Fittings ......... 339 Installing PEX Pipe and Fittings ............. 341 Section 3 Plumbing System Design and Installation Chapter 17 Designing Plumbing Systems ... 253 Basic Design Considerations ................ 253 Designing DWV Piping ......................... 261 Designing Water Supply Piping ............. 269 xii Contents Copyright Goodheart-Willcox Co., Inc.