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What Is DFU in Plumbing? | Definition & Why DFU Matters
A drainage fixture unit is a measurement used to calculate the drainage load that any given fixture places on a plumbing system.
Brad Dutton


What Is a Main Line in Plumbing? | Function & Common Issues
This guide will explain the difference between the main plumbing line and the drain line, along with common issues you may encounter.
Brad Dutton


What Is Rough Plumbing, and How Does It Work? | 2026 Guide
This article defines rough plumbing, the planning that goes into it, what it involves, and why it is important for your plumbing system.
Brad Dutton


How Long Does Copper Plumbing Last? | Homeowner's 2026 Guide
A well-maintained copper plumbing system can offer reliable service life across several decades without requiring a full replacement
Brad Dutton


Is Water Heater Plumbing or HVAC? | Know the Difference
This article explains how water heaters work while detailing the basics of plumbing and HVAC so readers know who to call if issues arise.
Brad Dutton


What Is Considered a Plumbing Emergency? | What to Know
This article will describe different types of plumbing emergencies and what steps to take when one occurs to ensure your home is protected.
Brad Dutton


What Does FIP Mean in Plumbing?
Female iron pipe fittings or FIP are available in different materials, and some will work better than others depending on the situation.
Brad Dutton


What Is a Plumbing Fixture?
Plumbing fixtures are permanent or semi-permanent, and they are often found in kitchens, bathrooms, laundry rooms, and outdoor areas.
Brad Dutton


What Is an Angle Stop in Plumbing?
An angle stop valve gives you the ability to turn off water to a specific fixture without shutting off the water supply to everything.
Brad Dutton


What Is a Coupling in Plumbing?
A coupling in plumbing is a simple yet effective fitting that connects two pieces of pipe to extend or repair an existing pipe.
Brad Dutton


What Is Stoppage in Plumbing?
A stoppage in plumbing refers to any obstruction that prevents water or wastewater from flowing freely through a pipe or drain line.
Brad Dutton


What Is RPZ in Plumbing?
RPZ refers to a specific backflow assembly that is designed to stop dirty water from flowing back into the clean supply of water.
Brad Dutton
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