Diagnose low pressure, running toilets, dripping faucets, and hidden leaks systematically. Carry a pressure gauge and use it. Master the food coloring test.
Key Takeaways
Why This Matters on the Exam
Water supply problems are bread and butter service calls, and the exam tests you on them hard. Homeowners expect hot water at decent pressure and temperature, and when they don't get it, you're the one they call. California C-36 exams test whether you can quickly diagnose and repair pressure loss, temperature issues, and fixture problems. Master this section and you're the plumber customers want back. Plus, you save them hundreds of dollars by diagnosing correctly instead of just throwing parts at problems.
What You Must Know
Supply-side problems fall into these categories:
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