Plumbing Code Basics

Learn to look plumbing requirements up in the book instead of guessing. Covers IPC vs UPC and how to tell which your jurisdiction adopted, fixture-unit sizing (WSFU for supply, DFU for drainage), minimum horizontal drain slopes, trap seal and vent rules, cleanout placement, and how local amendments override the model code. Starts with general codebook navigation so you can use any code (NEC, IPC, IMC) fluently.