Overview1. Plumbing History, Codes, and Principles. 2. Tools of the Plumbing Trade. 3. First Aid and Safety. 4. Basic Math for Plumbing. 5. Water Supply, Water Sources, Waste Disposal, and Sewage Disposal. 6. Mechanical Properties and Protection of Building Materials and Structures. 7. Piping Materials Used in Plumbing Work. 8. Joining Methods for DWV and Pressure Piping. 9. Squares, Square Roots, and Basic Geometry. 10. Plumbing Fixtures. 11. Faucets and Related Devices. 12. Valves. 13. Water Heaters. 14. Building Plans, Drawings, and Scale Rulers. 15. Sketching.