Up to date instructions for installing code-approved plumbing in residential and light commercial buildings. This volume covers all the fundamentals of the trade: planning and sizing, installation, maintenance, common layout, materials, and code requirements. Traps, valves, faucets, pipefitting, drain/waste/vent systems, septic tanks and drainfields, hot water systems including solar, plumbing for swimming pools, hot tubs, and spas.