Master Plumber Practice Exam 2025 - Free Plumber Practice Questions and Study Guide

The use of PVC (polyvinyl chloride) in plumbing is primarily characterized by its good chemical resistance. PVC is an inherently durable plastic that can withstand a variety of chemicals, making it suitable for a wide range of applications in plumbing systems, including drainage, waste, and vent piping. This resistance is crucial in preventing degradation of the material when exposed to various substances, ensuring longevity and reliability in plumbing systems.

While other materials may excel in heat resistance or tensile strength, PVC is specifically chosen in many plumbing scenarios for its ability to resist corrosive substances. It's also lightweight, which facilitates easier handling and installation compared to heavier materials like metal pipes. Understanding these properties helps plumbers choose the right material for specific applications, reinforcing the significant importance of chemical resistance in the context of plumbing.