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Plumbing Terminology Homeowners Should Know
Plumbing Terminology Homeowners Should Know
4.8 RATING

Plumbing Terminology Homeowners Should Know

When you hire a plumber to carry out plumbing installations or repairs in your home, you can feel lost if you don't understand the terminology…

June 23, 2026
Plumbing Terminology Homeowners Should Know

When you hire a plumber to carry out plumbing installations or repairs in your home, you can feel lost if you don’t understand the terminology your plumber is using. Knowing plumbing terminologies allows you to communicate more effectively with your plumber. You can accurately describe the issues you’re facing, ask questions, and understand the solutions proposed.

Shut-off Valve

A shut-off valve is a simple device used to control and stop the flow of water within a plumbing system. It allows homeowners and plumbers to easily tu off the water supply to specific fixtures, appliances, or sections of the plumbing system. Shut-off valves come in handy during maintenance, repairs, and emergency situations, as they provide a way to isolate and control the flow of water without affecting the entire building's water supply.

Gallons per Flush (GPF)

This is a metric used to measure the volume of water released when a toilet is flushed. In other words, it’s a measurement of the amount of water required to flush a toilet in gallons.

Our Customers Reviews

Chahib Chakrome

Summit, NJ

The service provided was great, nothing to say about the work of the plumber. 5 stars to him. But the company charges felt way too much for the work. We would have liked to have the same plumber take care of other things in the house, but every time he check how much extra the company will charge for the job, the price just got too much. The plumber did an amazing job he selected a beautiful faucet to replace our old one. He did his best. But the company prices have no room for negotiation.

Tiffany DeSande

Plainfield, NJ

A million stars!!!! Steve and Lucas were absolutely amazing. My parents pipes burst and within 4 hours of calling they came and fixed everything!!! Very nice guys and dealt with my panicking. I will always use them if needed in the future and you all should too!!! Thank god for people like this!!! Thank you so much guys!!!

Naomi Langer-Seltzer

New Brunswick, NJ

We got very quick service, I think the plumber actually arrived in less than an hour! After reviewing what was happening, he gave us our options and performed the option we selected. This happened in the late afternoon or early evening. It was already dark and there was a lot of snow on the ground.

Steve Smith

Mountainside, NJ

I needed immediate, same day service in the early evening at my home. I went to the internet and looked up plumbing services that offered "24-hour, 7-day a week" availability. The first 3 places I called said that they could not get to me until the following day. Then I called Mr. Rooter. They were courteous and promptly got a technician to my house within an hour and a half. The technician, Lucas Kaufmann, was exceptional. The job was not easy, but he figured the problem out and got me all fixed up within an hour's time. Moving forward, I…

Stephanie Brown

Cranford, NJ

Despite what was quite obviously a busy day (day after Thanksgiving at 10pm) TJ came out and did not leave until the job was done! There were several setbacks, which at the late hour might have prompted him to leave- but he chose to stay and continue until the job was complete! I only have one bathroom so I was really hoping he could make it work, and he really did a wonderful job! So thankful for all of his help! I highly recommend TJ!

Shaheen Dhanani

Union, NJ

This is my second time using Mr. Rooter and I have to say they are an excellent company of experienced professionals! The service techs were courteous, experienced and actually spent time trying to figure out the issue before proposing the solution. They were also patient and answered all my questions without rushing the work. I will be using them again.

Christie Murphy

Montgomery, NJ

TJ was amazing! 10/10 recommend this company. We were in an emergency state of panic with a burst pipe in the middle of a bad snowstorm. TJ came with knowledge, professionalism, kindness, and found the root of the problem within five minutes of being here. We will be using him again in the spring to fix an outdoor issue he found!

Alan Abraham

Clark, NJ

The technicians were friendly, professional and knowledgeable. The price was too high I believe, but the technicians had no control over that. The technicians took their time and did a great job. I would use them again and also recommend them.

Amy Swart

Berkeley Heights, NJ

Excellent service! Charles and Nicholas of Mr. Rooter arrived to my scheduled service a few minutes early, wore sanitary shoe coverings, and were extremely professional. They found the source of my leak quickly and fixed the issue. While they here, I requested an additional hydraulic heating inspection which they accommodated. They were very knowledgeable and provided helpful tips. I highly recommend this team and I will definitely call them for all future plumbing needs!!

JACKY Coppola

Wall Township, NJ

TJ came to my aid as the water pipe froze in my house. Although nothing could be done he gave me hints of what could be done my me which was very helpful. I found TJ very professional and caring about my situation. The best part of the very long night was the dogs adored him one wanted to accompany him to his next job. Thank you for employing such an amazing man. Plus today there is water running in the house. Thank you TJ and thank you Mr. Rooney plumbing for employing a man with helpful hints!!!!!

Here are some of the plumbing terms that every homeowner should know:

P-Trap

This is a U-shaped bend typically found beneath sinks and other fixtures that have drains. The main function of a P-trap is to create an airtight seal that prevents sewer gas from backing into your home.

Closet Flange

A closet flange, also known as a toilet flange, is a pipe fitting that attaches the toilet to the floor and connects it to the drainpipe.

Gasket

This is a flat rubber or fiber ring used to create a watertight or airtight seal between fixtures. Gaskets are typically used in pipe joints, flanges, valves, toilet components, faucets, and fixtures to prevent leaks and maintain the integrity of the components.

Flow Rate

This refers to the amount of water that flows through a pipe or plumbing system per unit of time. It’s often measured in gallons per minute (GPM).

O-Ring

This is a rubber ring used to create a leak-proof seal between connections. O-rings are used in a variety of applications, including faucets, valves, pipe connections, toilets, and pumps.

Hose Bib

Also known as a hose spigot, a hose bib is a water faucet on the outside of your home where you can attach your garden hose, sprinkler, or other outdoor water-related equipment.

Backflow Preventer

As the name suggests, a backflow preventer is a valve that’s installed on water pipes to keep water flowing in one direction. This valve works to prevent any backflow, thereby preventing contamination of clean water.

Vent Stack

Also known as a vent pipe, a vent stack is a vertical pipe that runs from a plumbing fixture up through the roof of the home. The vent pipe provides an entry point for air and an exit for odors and sewer gases. It also helps maintain proper drainage by preventing airlock and negative pressure.

Water Softener

This is a type of filtering appliance designed to remove calcium and magnesium from the water supply coming into the home, thus reducing its hardness. This appliance is installed at the point where water enters a home’s plumbing system.

Call Mr. Rooter Plumbing For All Of Your Residential And Commercial Plumbing Needs

If you’re looking for a dependable plumbing company to help you with plumbing installation, repairs, or maintenance, you can trust Mr. Rooter Plumbing to do a great job. We are a trusted plumbing service with decades of industry experience and a team of highly trained plumbers. Whether you’re in need of water heater installation, drain cleaning, toilet installation, or sewer line replacement, we are here to help.

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