Tag: WCO meaning

If you’ve ever flipped through the Uniform Plumbing Code (UPC) and stumbled upon the acronym “WCO,” you’re not alone. Many plumbers, inspectors, contractors, and even curious homeowners ask: “In the Uniform Plumbing Code, what does WCO stand for?” It’s a valid question—especially when compliance, safety, or licensing is on the line. In this article, we’ll…