Isometric Drawings for Plumbers - Exercise 3

This video demonstrates how to draw isometric plumbing diagrams for water supply lines, using Exercise 3 to show hot and cold PEX or copper lines running to a master bathroom's toilet, tub, lavatories, and shower. 🔧 Want more from Plumber Tom? Create your FREE GritWorks Plumbing account for plumbing training, ad free videos, practice exams, and more. Free to join. No credit card required. 👉 https://GritWorksPlumbing.com Chapters: 00:00 - Intro 00:22 - Exercise 3 Overview 00:59 - Starting The Cold Water Riser 01:24 - Running Cold Line To Toilet 01:46 - Hot Left Cold Right Rule 01:59 - Cold Branch To Lavatories 02:23 - Cold Branch To Showers 02:56 - Switching To Hot Water Lines 03:21 - Hot Branch To Tub 03:56 - Hot Branch To Shower Valve 04:21 - Second Shower Hot Line 04:39 - Adding The Shower Riser 04:54 - Recap And Practice Tips Plumber Tom walks through using colored pencils to distinguish cold water lines from hot water lines, following the convention of hot on the left and cold on the right at each fixture. This tutorial helps plumbers and apprentices practice reading and creating isometric drawings to visualize pipe branching, tees, and risers before rough-in work.