Plumbing Glossary

Plumbing Glossary

On this page, our plumbing glossary, we will explore some of the most common plumbing terms and their definitions to help you gain a better understanding of how plumbing works. Whether you’re a homeowner looking to understand your plumbing system better or someone interested in pursuing a career in the plumbing industry, this page will provide you with a solid foundation of plumbing knowledge. So, let’s dive into the world of plumbing!

  1. Pipe: A tube or hollow cylinder used to convey water or other fluids.
  2. Drain: A pipe or channel that carries wastewater and sewage away from a building.
  3. Fixture: A device that is permanently attached to a plumbing system, such as a sink, toilet, or shower.
  4. Trap: A curved section of pipe that prevents sewer gas from entering a building.
  5. Faucet: A valve that controls the flow of water from a pipe.
  6. Valve: A device that controls the flow of water in a plumbing system.
  7. Septic tank: A large underground tank that is used to treat and dispose of household wastewater.
  8. Water heater: A device that heats and stores water for use in a plumbing system.
  9. Pressure regulator: A device that regulates the water pressure in a plumbing system.
  10. Backflow preventer: A device that prevents contaminated water from flowing back into a potable water system.
  11. P-trap: A type of trap that is shaped like the letter “P” and is commonly used under sinks and other fixtures.
  12. Vent pipe: A pipe that allows air to enter a plumbing system and equalize pressure, preventing water from being siphoned out of traps.
  13. Shut-off valve: A valve that can be used to turn off the flow of water to a specific fixture or section of a plumbing system.
  14. Sewer line: A pipe that carries wastewater and sewage from a building to a sewer system or septic tank.
  15. Pipe fittings: Connectors and joints used to connect pipes and other plumbing components together. Examples include couplings, elbows, tees, and reducers.


We hope that this page has provided you with a useful introduction to plumbing and its terminology. Plumbing can be a complex and technical field, but understanding the basic concepts and terms is crucial for anyone who owns or maintains a building. By learning about the different components of a plumbing system, you can become more knowledgeable about how your own plumbing system works and how to troubleshoot common problems.

Remember that plumbing is a vital aspect of our daily lives, and it is important to take care of our plumbing systems to ensure their proper functioning. If you encounter any issues or need help with your plumbing system, it is always best to consult a licensed plumber who can provide expert advice and services.

Thank you for taking the time to learn more about plumbing. We hope that this page has been informative and helpful to you.