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It's 6 feet not 8 feet... x2 plus 2 on the diameter of pipe

I'm trying to wet vent a lavatory from a dry vent used by the shower and am not sure how long the vertical+ horizontal distances can be because the trap for the lavatory is above the floor. It's hard to locate examples online as most use the dry vent from the lavatory to vent the shower, but not the reverse. Is this possible? What are the maximum distances?

And then there are the code requirements dealing specifically with the toilet. Are you aware of what venting requirements are for a toilet?

Using a tee or san-tee, can I tie a new sink drain into an existing bath tub overflow drain tube. The new sink has a pea trap and is vented via a studor vent.

Thank you sir, keep them coming

I think you misspoke at 7:57. The toilet appears to be the farthest fixture downstream of the vent..

some jurisdictions dont allow for a double wye to be used horizontally

SECTION 912 WET VENTING 912.1 Horizontal wet vent permitted. (2021 IPC CODE AND COMMENTARY) Note that fixtures connecting through a double-pattern fitting are considered to be independently connected to the horizontal wet vent. The individual fixture drains vented by a horizontal wet vent must enter the horizontal wet vent in the horizontal plane so that the connection is not below the trap weir of the connected fixture. Water closets, having integral traps that depend on self-siphoning, are exempt from this requirement. Other fixtures that are not vented by the horizontal wet vent (i.e., vented by a dry vent) can enter the horizontal wet vent horizontally, vertically or at any angle in between. Water closets, having integral traps that depend on self-siphoning, are exempt from this requirement. according to the 2023 IPC CODE and commentary. Water closets CAN enter a horizontal wet vent VERTICALLY because they depend on self siphonage AND they CAN but they dont HAVE to enter horizontally according to the information provided in this video However code in ur area may vary from code in my area, AKA take what I say with a grain of salt, especially if your state, province, etc uses UPC or any other plumbing code

Great video! for example 7, if you didn't have the air vent and you had to install an AAV, where would you add the AAV? On the toilet pipe or the shower pipe? Or both

Most people say balloon framing is stronger, but way more dangerous in fires.

Can you hook up 2 toilet and 2 shower and 2 sinks in one 3 inches abs pipe? I just want to make sure. it’s all in underground one story house no basement it’s all under concrete if you can let me know please thanks . I can sand you pictures if you want thanks

Heres something to ponder.... 912.1 Horizontal wet venting states every fixture must connect on the same level of the horizontal. In said section of the commentary the exception on the toilet. This is what it states.... "The individual fixtures vented by horizontal wet vent must enter the horizontal wet vent in the horizontal plane so that the connection is not below the trap weir of the connected fixture. Water closets, having integral traps that depend on self siphoning, are exempt from this requirement". With that being said saying a toilet draws air is not completely correct. A toilet pushes air when flushed that why a toilet does not need to be directly vented and limiting the distance for a toilet to vent is pointless... That would be section 909.1 Distance of trap from vent.

Great video. Thanks. I've seen tutorials which have ledgers on the sides too (not just the back). Good to have the 2 shorter side ledgers or good enough to just have the long one in the back?

You cant use long sweep 90s on the horizontal as you stated. The double wye is completely acceptable practice as well, code exists for a reason.

I am planning a bathroom on a new addition exactly like this. The waste line comes in from behind the toilet. Do you have a video showing the rough in plumbing for this exact set up ?

Im currently doing a comercial project where the engineer has asked us not to use double wye's. But not saying we can't, because our code says we can. Anyway I ditched the double wye's for this project. It complicates things a bit though and adds extra vents. I've always done what was mentioned and just added more slope to ensure my double wye has grade

So question? So is a vent need for a face bowl

The codes are specific that 1/4"/ft must be "in the direction of flow", which is impossible for a flat double wye, which would need 3 directions of flow. Normal fittings in horizontal applications are always in 2 directions of flow. For instance a long sweep 90 is 1/4"/ft downhill towards the drain, but ALSO 1/4"/ft uphill in a perpendicular direction. 2 different vectors. This is part of the reason waste easily crosses over the double wye & clogs when horizontal. They very frequently clog. It's bad plumbing.

In the first example if we added a separate dry vent before the toilet can we have the y directly under the toilet?

I perforate the top of the waste lines with a 1/8” bit the entire length of the pipe. No venting needed!

Last example with flat vent is clear violation which you have been explained & shown code sections but still advocate. You said you didn't understand the problem. The reason from the code's perspective is that downstream clogs back up and permanently clog or impair dry flat vents. If you don't agree with the code, I don't know if you should keep telling people to vent in a manner that would get them flagged at inspection

Yes, the diagrams and explanations are making sense, thank you!

One issue is you can’t connect both fixtures at the same place. In many places double y’s cannot be laid on their side. This is because if you turn one side up slightly to get fall then the other side has backfall

2:34 Why would you ever need to snake your vent? I mean maybe you get it unclogged and the clog travels down the vent pipe?

why didn't you just put the lavy drain closer to the toilet/shower to wet vent the bathroom group and run an arm for the lavy? The shower does not need it's own vent.

will this work also with a double vanity w/cross T??? tia

I really don't understand why you are putting the vent 16 inches in front of the toilet and also in front of the shower. What's going on?

I cant pick the wall in the perspective view.

“Vents protect traps”

In example #3, is it possible to have a soaking tub wye into the shower drain before it enters to the main 3" line? And with that in mind, how would this work with the vanity and tub switched sides of the room but the DWV 3" going the same direction?

Nope absolutely not. Chicago framing doesn't use hangers, everything is joined into the studs, combined with nails, ledgers and joined in braces. To me it's the clear winner.

No horizontal dry vents allowed below flood level rim of the fixture it's serving. the dry horizontal vent serving the toilet is wrong in example 10, also example 11 is wrong on the horizontal dry vent below flood level rim of the shower.

Which examples here are not code compliant?

ruclips.net/video/oGem3reRzZ4/видео.html Here's our playlist for more plumbing questions and answers. First Updated Video - How Dry Vents Can Connect To Wet Vent Plumbing Drain Pipes - Shower And Toilet - Project #1 - Q&#1ruclips.net/video/oXeKlCgOgGY/видео.html You should always check with your local building department to see what they approve.

What is the cost to span a distance 36' from one perimeter wall to the other? BTY I want to build with 2x6 studs so I should be able to build 24" on center. This would be for a small Desert home. I want a garage too. And that would be 24' wide and 36' deep (it will have a workshop / storage in the back of the garage. So just a continuation of the trusses all across the length of the home and garage? 36 + 24 = 60 feet, all of it 36' deep. And the last truss that's parallel to the perimeter wall, is that made of thicker wood at the rafters, so that there can be lookouts installed? anyway, at 60 feet that's 30 trusses. What is the cost of a truss spanning 36'? This is for a desert area home, in east San Diego County, CA. (I'd build a flat roof if the county would let me, but maybe that would be just as expensive in the long run?) I'd really like to know what is the cheapest, cheapest way to build a home. I figure 2X6 24" on center is the cheapest way to build and meet R values mandated in California. Anyone out there have any ideas for me? I was also thinking about a concrete block home, but that seems like it's just as much work in the long run.

I have a concrete back porch that has a flat roof. Could I build a deck or balcony on top?

Oh my god, you just made this make sense about not wanting liquid to run through the top of the pipes, because that’s for the air

lol wow Im confused 😅 Gotta watch this a couple times

I see videos of venting through the roof because the pipe has to be vertical. Can we vent through the siding?

I recently watched one of your videos called how are most tubs supported. I have a very small master bath that has a fiberglass garden tub that is surrounded by a ceramic or Subway tile base. Is there a way the Subway tile can be salvaged and the tub be demolishedin pieces, carried out to the dumpster what to do with the base of the floor, create a closet area with sliding barn door. Is this possible? Thank you.

Thanks! Very helpful. If someone is under IPC (Colorado), could you use one of these layouts in a basement with an AAV (like at the sink) instead of connecting to a stack?

Wow. No bs or anything, just a quick useful video on the differences. Thanks.

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Could you tell us, which city asks to use 1x4 as top plate? I think the total 1.5+.75=2.25" is not strong enough for roof truss

Learning a lot from your recent hour long videos. Find it fascinating about the engineering behind structures. Just wondering, if you haven’t mentioned, the differences between stick frame and post frame structures.

How to change individual walls high, this should mean exterior walls also

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