How Far Should a Plumbing Vent Be From the Fixtures?

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When placing your plumbing vent, you always need to make sure that is a very specific length away from your fixtures for safety reasons. Find out about how far a plumbing vent should be from the fixtures with help from a foreman for Lighty Contractors in this free video clip.

Part of the Video Series: Plumbing Repair
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Video Transcript

Hello, everyone. I'm Joshua Clement with Lighty Contractors, and today I'm going to talk to you about how far should a vent pipe be from the fixtures. Now when it comes to the vent pipes, there's several different sizes so you might want to check the code in your local area. But there is a rule of thumb for this that it should be between this size and this size. We'll go ahead and start with a four inch pipe. The four inch pipe is designed for larger sewer lines so that way you don't get as many clogs. When you run a four inch pipe, it's a good thing to go ahead and run a four inch vent up. When you do this you can run the vents ten to 12 feet from the fixture. Now you can also run a three inch pipe instead of running the four inch vent even if you have four inch plumbing. If you do this, the pipe needs to be between six and ten feet from your fixtures. This here is an inch and a half pipe. This is the smallest pipe that you can possibly vent with. If you vent with this you want to be sure that you put it within three and a half to five feet from the fixtures. Now a two inch pipe you want to make sure they're the same length. They're not that much bigger so you want to keep them kind of close. I'm Joshua Clement with Lighty Contractors thank you all for watching and good luck with this project.


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