How To Vent Plumbing Pipe - Toilet, Bathroom Sink, and more!

[@TheExcellentLaborer]

Regarding the height of the horizontal vent pipe from the bathroom sink shown at 10:35, it has been brought to my attention that it's currently too low. According to plumbing standards, it should be positioned at 42 inches off the floor or 6 inches above the flood rim of the sink. In my practice, I prefer connecting these vents in the attic, which is considered the optimal choice. I'm committed to providing the most informative content, and I appreciate your feedback. I'll make sure to address issues like this promptly in the future. Apologies for any confusion, and thank you for watching!

[@manuelbolis1527]

Nice

[@larrytheplumber9851]

😂

[@Jfonsecallc]

Just watched your video and was going to comment exactly that vertical was too low … at least you know now

[@caitlin9729]

Larry the plumber was watching plumbing videos which means he probably sucks at plumbing. But Larry doesn't know how to do tile carpentry electrical or anything but plumbing so whose laughing other than Larry's limited wallet

[@larrytheplumber9851]

@@caitlin9729 🤣

[@Anjana.6301]

The diagram and explanation really helped clarify the dry vent vs wet vent concept, thanks so much! Have learned a lot from your videos!

[@NickFunderburk]

Great video! You mentioned being careful not to use too much pressure when applying the glue, and I just wanted to note a trick that I've learned is to pinch the applicator rod instead of holding the lid during the application. That way you're not putting stress on the connection where the rod attaches to the lid and you're able to make it through an entire bottle of glue without the applicator breaking off! Thanks for you videos, always helpful!

[@Dogatemyhomework927]

Glad you caught the vent pipe issue

[@TheExcellentLaborer]

I try my best! Thanks for watching!

[@stevepurcell7266]

All of the videos from this guy are very informative. This guy does a great job explaining each step. He even explains that codes in your area should be followed.

[@JamesWallaceBigPOTUSA]

I love the music to glue by.

[@triplecranks]

With that being said…and as you can see……excellent video!!😄

[@roythurston7799]

Really good information dude. I’m amazed at how much information you gave me in 28 minutes. I will use it all tomorrow.👍🏿👍🏿👍🏿

[@dennisnolan2544]

If you use this guy’s info you’ll be doing it wrong

[@davek6461]

Also, you are allowed to neck the dry vent portion of your vent down to 2" from a three inch dwv once you are passed the toilet drain, and it makes it easier and saves a few dollars

[@iiRR3lephanttt]

This diagram @25 mins is the reason I subscribed. Very good stuff dude- I needed this!

[@knowleskarateacademy3347]

Good stuff. Thank you. My wife and I are renovating our master bath and this video is helping us believe we can do it!

[@petersunhome7847]

Thank you for making such helpful and informative video and shared your knowledge.

[@eltonnoway7864]

Take a drink every time he says.... "As you can see" 😄

[@DaHammah]

I did it and now “I can’t see” straight 😵‍💫 😂

[@T.E.P..]

Hey hey Josh! Thanks again for all the vids ... hope you and the fam have had a perfect 2023 Summer!!!

[@TheExcellentLaborer]

You are welcome! I hope your summer has been a blast as well. It’s been a busy one for me as you see. Fall is right around the corner. Take care!

[@philwell76]

Cleanest hands on jobsite😂 beautiful

[@jeanfrancois7470]

Thank you very much for your good Explanation

[@TheExcellentLaborer]

You are welcome!

[@Patty-qh3lm]

Doesn't the sink horizontal vent pipe have to be like 6+ inces above the sink edge?

[@TheExcellentLaborer]

Thanks for your comment. I addressed this in the comments. Thanks again!

[@ecurbow]

Many thanks for sharing.

[@TheExcellentLaborer]

You are welcome!

[@met8886]

I was just wondering why you didn’t use a street 90 on the sink so the pipe wasn’t crooked and you would have been closer to your center mark you needed ?

[@logankington305]

Yep way easier

[@number1pappy]

Question... Do you have a video on how to install drains and vent pipes under a crawl space. especially how to vent the toilet drain in a bathroom on a crawl space instead of a concrete slab. Thanks 😊

[@robthompsonfarm3902]

Awesome video as usual... I'm doing a small polebarn to house... Your videos have helped me a lot!!! Thankyou.

[@TheExcellentLaborer]

So cool! I’m glad I could help. Good luck with your project !

[@joseph-ine452]

True pleya with good instructions. Nice !!!

[@josemena7644]

Thank You 🙏🏼

[@TheExcellentLaborer]

You’re welcome!

[@erhantimur]

Excellent video, thank you.

[@TheExcellentLaborer]

Thank you I appreciate that!

[@Avengedsevenfoldrocks]

​@@TheExcellentLaboreryou should always wear safety glasses

[@loadedwahlter8796]

First vent tied in looked level; but id gamble it had an 1/8 inch backfall. Only saw a level on the stub out for the drain.

[@BeEasyKlockwork]

Great stuff keep up the great work

[@randydueck6870]

Why are 3" pipes ever used for vents? Wouldnt it be cheaper to use 2" or even 1 1/2"? Also that would be less weakening of studs when cutting through. Always wondered.

[@retardwrestler1587]

Depends on your dfu's. Oversizing your vent stacks is allowed in my state

[@cpm324]

government and money

[@GabrielOliveiraeng]

Eu acho muito interessante as instalações sanitárias e elétricas dos EUA, os materiais são de qualidade excelente.

[@sadanandgond7542]

Very good work 👍👍👍👍👍

[@TheExcellentLaborer]

I appreciate that!

[@hombreelefante123]

10:37 You have a vent going horizontal that's about 23" high from a lavatory. If the lav drain ever clogs below, the water will back up and flow out through the vent. You won't know you have a clog until the vent clogs. Once that happens, you'll have a really hard time unclogging the vent. I read somewhere that you have to put that horizontal up six inches above the top of your sink at 43 inches high or so. That way, if it clogs down near the slab, you'll see the water filling up and coming over the top of your sink so you will know you have to clear it. Am I right about this? I don't think this rule applies if you are using an air admittance valve because it would not let the water out through the vent.

[@hombreelefante123]

I see now that you have already addressed this, but I hope my comment at least explains why the rule exists.

[@howardmullings7047]

Very helpful information

[@TheExcellentLaborer]

Thanks Howard!

[@bobrub]

Your lav horizontal vent is too low. It should rise vertically (or using 45 degree elbows) at least 6" above the highest flood level rim in the system (usually @ 42"- or 6" above kitchen sink level) before offsetting horizontally to tie into the 3" vent stack by all plumbing codes I have seen. Ask you AHJ or plumbing inspector.

[@TheExcellentLaborer]

Thank you for your feedback to improve this video. See my pinned comment.

[@davek6461]

That caught my attention also.

[@HarriettArnold-ft6in]

I noticed the same thing. The reason for vent explanation is wrong also. Two reasons needed. System is sealed through septic or sewer. Gases expand and would creep into house even back through p traps. The next reason for vent is developing a siphon effect as water drains through p trap and without vent, it would leave an air gap in p trap and allow gas migration.

[@Ticonderoga12]

Yea i made that mistake of leaving the vent too low with a studor vent and i had a backup and it was pissing out the studor vent.

[@marekkrepa9982]

Ok so 42 inch. But can it be higher? I have electrical box on my way

[@notahotshot]

Nice video showing us how you plumbed in this job. Now I'm off to look for a video that actually shows how to design a plumbing vent system.

[@TheExcellentLaborer]

Thanks! Yes, every house is going to be a little different. I appreciate you watching!

[@gvein6572]

Am I wrong in thinking that he just wet vented from the sink and up the wall and over to vent through the roof?

[@sketch119]

For the two story house plumbing example, when you tie in the first floor vent pipe with the second floor vent pipe, is it continuous? Or do you have to start again on second floor and go up 42" for the second vent and connect the first floor vent to the second floor vent pipe? Also, if the toilets are 1 foot away from the 3 inch stacks, would you need to put a vent for both of the toilets?

[@davek6461]

All fixtures should have a dry vent within 5'

[@mmaldona99]

Question: about two years ago we moved to a new house with an unfinished basement with two bedrooms and one kitchen stubbed for the future. We are now starting finishing the basement, and we just realized that we have no negative pressure vent pipes at all! Any ideas?

[@pedropereira8924]

Thanks very good information!

[@davidgevawer8920]

Thanks a lot I really appreciate you

[@TheExcellentLaborer]

You are welcome, David! I’m glad you like the video!

[@rorycompton8138]

When you punch holes through your house wrap at 21:16 , do you use seam tape or just caulk to seal them up?

[@logankington305]

So I believe international code requires slope even for air venting lines in order for condensation and rainwater to drain through the venting system. One inch per foot of drop. Thoughts?

[@donmorris9453]

not code to slope vent piping, at least not in our location. But a good idea to do so. 1/4" per foot!

[@chazmcknight6708]

My question is I only want one hole in my metal roof. Can I connect 2 or 3 vents in the attic horizontally using 90s to travel to one another??so they can go out one hole. Or can I only use 45deg fittings going up and out??

[@retardwrestler1587]

You can use regular 90's on vent pipes.

[@josiahtubo]

¡This Dude! Thumbs up 👍🏼

[@TheExcellentLaborer]

Thank you so much!

[@jeffhuntsman9367]

DIY Plumber.. or learned that working in a factory.... Good enough for your house... Cause I can't see it from mine..🤙

[@ayubbuildingconsultants]

Great and detailed video as always Josh ! (Waiting for Kitchen Countertop Installation video :) )

[@elpaisadesanluis4874]

Good man

[@TheExcellentLaborer]

Thank you for watching!

[@LillieGorrell-dr1lt]

The fan vent on my roof was blocked off with the metal roofing, the fan did not work anymore, now the celotex feels moist and saggy! Do I need to have the vent pipe installed and who could do that? Help! Thank You

[@Faruk651]

That sink vent is a major violation at 10:35. How does it pass inspection? This is not allowed anywhere in North America including Canada.

[@TheExcellentLaborer]

I appreciate your feedback. I did pin a comment about this. It is also in the description of the video. Sorry for the confusion!

[@Faruk651]

@@TheExcellentLaborer I love your channel and work. Thanks for admitting the mistake and letting people know. We all make mistakes. People watch these videos to tackle their DIY projects. Some are too lazy to do research and will watch one video and think they know it all :)

[@TheExcellentLaborer]

@@Faruk651 I appreciate that! Yes, my goal is to make the most helpful DIY videos I can. I am as human as the next person and all we can do is our best. Take care!

[@Born2be76]

😂😂😂

[@corconstruction]

Good work

[@randypaul5427]

Excellent video! Are you in a colder climate? I noticed your using 3-inch pipe for the venting. Just curious.

[@TheExcellentLaborer]

Thank you! We do definitely have a cold season here. The 3 inch pipe is definitely plenty for just a half bath. I could have got away with a smaller pipe, but I like to use a 3 inch pipe if I can for plenty of vent. I hope that helps!

[@randypaul5427]

@@TheExcellentLaborerthanks Josh! I really appreciate it.

[@davidmarquardt9034]

@@TheExcellentLaborer Here in Wisconsin, 4 inch is required for the soil stack and out to the street. 3 inch is rarely used, everything else 1 1/2 or 2 inch into 4 inch. Also the vent is expanded at the roof line so that in winter if frost or ice builds up, you still maintain a 4 inch unrestricted vent opening.

[@davek6461]

​@@davidmarquardt9034interesting.

[@alinesevignyprimeshieldhom4582]

I believe you need to put your cement WHILE your purple primer is still wet for proper fusion… it’s not just about the color…

[@Mr1649wayne]

Your vent connection is way below the flood level rim of the fixture is serving, creating a bypass in the event of a clogged waste pipe below your ty connection

[@davek6461]

Also, you could have run the AAV under the sink off of the drain line with a horizontal saniT and saved a wall penetration.

[@luisgutierrez9680]

Can we tie up the 1 1/2 vents in to 3”vent.? Please answer.

[@TheExcellentLaborer]

Always check your local building codes, but in my area I am building in we can do that. I hope that helps!

[@diyeric4114]

Hi, i have bathroom upstairs there is 1 vented pipe , which vents through the roof , so all good , my question is if i fit a underground junction with pipe going to the above pipe for a cloakroom w.c downstairs do i need to worry about venting or will the vented pipe already there be okay

[@retardwrestler1587]

If you have a 4" stack going through the roof then you should be good

[@carlosmelendez1864]

Hey man great informative video! So a question for you, when doing plumbing in a basement, does connecting to any stack automatically counts as proper venting? Since everything above should be vented and at some point leads to the roof? Thanks for the content!

[@retardwrestler1587]

I'd say run your vents into the attic and tie them together somewhere up there into the vent stack

[@andreankusnetsov7264]

Have a question for the experts here since I'm a complete newbie, is there any reason why I couldn't just use air admittance valves on all the drains? I understand it would cost more but would be a lot easier than tying everything and taking it thru the roof. All feedback would be greatly apreciated.

[@Tonybx4dd]

Smooth.

[@pipesbikes7532]

failed inspection on vent also lavatories have to be 15 inches off wall and 30 inches from center of other fixtures

[@mariamwaseemi1213]

Question: anyone knows where i can buy PLUMBING CODE BOOK?? Thanks

[@sunman4291]

You could have wet vent that lavatory Darin into the 3 toilet vent.

[@babyboinews6896]

@the excellent labor how do you pull permits if your not licensed and how do you find out what rhe plumbing codes are in your city etc

[@JillofAllTrades2]

As an owner you can pull permits. Codes are usually legislated at the state level and are available on the websites of the relevant state government agencies. The state codes almost always conform to UCC but each state can be at least one edition behind, if not more: It takes awhile for some states to update their building codes.

[@steezyg1665]

Hey man take some pride in your work !

[@chrisschmitz1926]

Why would you not put a 45 or 90 on the roof vent so it doesn’t get clogged with snow or ice or does it matter

[@SophiaAphrodite]

Remember to check local code for the vent valves. Some states they are not allowed.

[@DGeneraladventure]

Can I get some of the plumbing work.. only issue I’m in Jamaica

[@andrey162000]

That’s the trap arm not a wet vent, the portion below san tee heading to 3” is wet vent. Your sink is wet venting the shower. If the sink was wet vented, then there would be water draining from above it, that’s like modified stack venting or multi story wet venting

[@kadijahmoore159]

Should a tub be vented?

[@daktusdurggery5505]

My toilet doesn’t seem to have a separate vent coming out of the concrete slab? I’m confused

[@davek6461]

Venting does allow water to drain properly, but in doing so it provides for several things. three main purpose of venting is to keep the draining water from siphoning water out of the fixture trap, which would then allow sewer gas to enter the building. It also allows for equalization of air pressures inside n outside the house to prevent traps from draining or burping, and it allows sewer gas a place to vent safely.

[@meloyky45]

We r having water backing up in tub from toilet how to vent this problem would be helpful

[@retardwrestler1587]

Sounds like a drainage problem more than venting. I would snake the lines first before dealing with the venting

[@Santamonicadrainco]

Send it Andy, stock up on some street fittings and do it right :) love the channel, sometimes best to bring on a pro.

[@RankSevenYasuo]

Watch how you tie in your vents, needs to rise and connect at least 6" above flood rim of the highest fixture on the branch. How you did that sink should fail pretty much any inspection i would imagine. You'd never know if something clogged, pressure would build up and before showing at the fixture its just going to dump down your vent.

[@flyingcountryboy]

Street 90 would have worked sweet on the lavey sink drain. Js

[@marlonfout5911]

18 " is to high for kitchen and laundry sinks should be at 15" to 16" it works better i think

[@freddelia9063]

Do u have to use a 3" vent pipe? I thought the commen vent pipe size was 2" ?

[@retardwrestler1587]

Depends on your dfu's

[@curtismays2959]

Thank

[@donaldblank8873]

Vent cannot change directions less than 6 inches above the flood rim of the highest fixture.

[@nelsonbrum8496]

A street elbow would have saved you some headache and space on the sink drain. Also, good luck snaking any clogs in that branch...

[@andrewmiller4718]

Lavatory vent is not 6” above flood level rim.

[@manuelbolis1527]

By upc you can't connect two vents under de flood level rim and also if you want to use 90° the way you did you need to use those 6 " above the flood level rim, 45° are ok but no 90° . With all my respect

[@andrewmiller4718]

@@manuelbolis1527 correct. If the lavatory drain ever backed up you would never know because it would began draining through the vent and over to the stack.

[@Patty-qh3lm]

Doesn't the horizontal vent have to be above the flood level of the sink by like 6+ inches?

[@erinsquirkychannel501]

What's the flood level u all are talkin about and drawing over to the vent and over to the stack

[@manuelbolis1527]

@erinsquirkychannel501 in this particular video talking about vanity sink, the flood level rim is the top of the sink

[@contrarianthinker]

At 14:33 are you sloping down or up

[@retardwrestler1587]

He should be venting up. He put the block at a height where the pipe will be pitched sitting on top of it

[@brianchandler8727]

If you can’t go out the roof, can you out the side wall

[@semosancus5506]

When I built my house about 15 years ago, sidewall vent was not allowed. I only have one roof penetration and that is my plumbing stack. Couldn't come up with a way to eliminate it. At least I tied all vents together in the attic and have one penetration instead of these apartment complexes that have like 20 penetrations.

[@davek6461]

There are also codes as to how high vent must be above roof n how far from dormer windows

[@busterhikney6936]

@25:52 this guy is Lex Luther!

[@feildmaster]

The studor vent needs to be 6 inches above the top of your sink when it's the only vent in the stack

[@MarkChilluffo]

Why do you put the vent pipe through the roof?

[@retardwrestler1587]

So rain can flush out the system

[@lanearquette7537]

💙👍🏿

[@MoonbeamAcres]

I noticed the 3" vent going out the roof, but was wondering do you have some type of vent cover that would prevent rain and bugs from entering the pipe? And why can't we save your videos for later reference? I am able to save everyone else's, and I have a file that is public for people to use as reference depending upon the topic, but there's no button available to save yours.

[@stevenfoust3782]

Mistake right away. Vents have to be above the flood plan of the sink

[@louish.9414]

Husky has new tool to cut pvc clean cut no need for debur

[@beachbrettf]

As you can see

[@iamxsapper345]

A video on venting with no information provided on how far vents can be from drain lines. Good video but but missing helpful insight on certain parts like maximum distance a vent can be from a drain.

[@lanniedulin1075]

90 on the vent made it go horizontal below the flood rim. That's a no go you failed inspection.

[@donaldblank8873]

The other problem is you need to understand why this is a rule.

[@Deanna-kk1rz]

All Stores Please Lower the Price of all Military & Local for all Brands of Plumbing Products & Accessories & Production Cost Now That's too much $$ The Whole World Now 🙏🙏🙏

[@cpm324]

The straw example is not how plumbing works.

[@johnpeters9903]

At 10:37 the vent from the lav sink is too low, can't go horizontal until it extends 6" above the flood rim of the fixture. Sad that a video on venting would have such a blatent violation of code.

[@wall3916]

Dry fitting is a bad idea just trust your math and go for it

[@CarlosQuiñonez-x2t]

Your lab. horizontal vent is to low

[@michaelSteffler]

Bronjustnsaid that saw was portable smh

[@FlipNasty1]

San tee... or sanitary tee... dude idk what to say about your methods or the products you use Also you dont "hold the coupling or fitting for a good bond".. the fitting will start to back itself out

[@EddieAcuna-r7x]

If you know what you're doing, why are you watching this..

[@3seantracy]

Be a man huff the glue and primer

[@glennmanchester5696]

Thats exactly what i was going to say 6 inches above the. Flood rim level. So that was all a waste of time and fittings