Plumbing Field Practice: Drawings, DWV Design, Water Sizing & Inspections

The second plumbing course: reading plumbing drawings, isometrics, and Division 22 specs; sizing drains and vents from fixture units and the code tables; water distribution sizing, pressure, velocity, and materials; underground rough-in and the under-slab test; water heaters, scald protection, and backflow prevention; and coordinating with other trades through inspections, pressure tests, and closeout.