Toilet And Shower Wet Venting For Plumbing Drain Pipes In Floor Framing - Project #1

The plumbing codes in most of this video can be found in chapter nine of the Uniform Plumbing Code Book. Others can be found in International Plumbing or Residential Building Code Books and this seems to be creating more issues that I will address in future videos.

[homebuildingandrepairs]

First Updated Video - How Dry Vents Can Connect To Wet Vent Plumbing Drain Pipes - Shower And Toilet - Project #1 -

You should always check with your local building department to see what they approve.

[christopherdekonstrukt]

I'm building my own sewer cam out of a 50' endoscope, 1/4' drain snake, and old Android phone. Will use a wheel end for a 23mm camera head and will tape to shim. I had a situation where every time my washer would drain the water was pulled out of the toilet P-trap in the half bath and then the master bedroom would stink of sewer gas. Flushed my vent stacks on roof and hit the main drain to the street with a jetter.

[jacobmiller]

Thank you for sharing, it's a very specific topic considering, as you showed slight changes in drain length from fixture to main drain cause issue. However, it helps anyone to imagine how their specific needs should be approached. The 3D modeling is so nice to see compared to 2D scribbles on a dry erase board. Thanks again!

[Zach-lsif]

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

[joshcowart]

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

[Calakapepe]

lol wow Im confused 😅
Gotta watch this a couple times

[shmulis]

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

[osheros]

Around 2:27 you show a horizontally installed double wye. I thought the double wye could only be used vertically, since you wouldn't be able to get the necessary slope on both branches of the wye in a horizontal configuration. Did I miss something?

[samjabr]

Got a question for you just opened a a ceiling in nyc found a jacuzzi and a shower both coming down with 2 inch traps then the the traps transition to 11/2 drain pipe both connect with a tee and go down the wall in an 11/2 pipe no vent . Do you think me replacing the 11/2 line with 2 inch everything I can see and add a strider vent

[gilbertlopez]

I did a tub drain broken pipe on a additional that was from what I was told the addition was done in the late 50's early 60's. . For some reason they were having the tub roto cleaned constantly since the addition was built. In the bedroom addition I had to cut the drywall to get to the back of the tub as the tub wasn't draining flooding the bedroom. Once I cut the drywall out I noticed that the drain pipe was leaning to the side. When I grab the pipe it just pulled up out of the ground. I needed to remove the tub removing four layers of tile, taking out the toilet, and removing two rows of tile on the floor. Once I removed the tub I realized that you could not get to the drain pipe as the concrete floor has little access to the drain pipe.after trying to make the access larger I realized that the concrete floor was 6-8 inches thick. My largest sledgehammer would not ever put a chip in the concrete. So I had to rent a jack hammer. After 6 hours of hammering away e was able to get to the bottom of the drain pipe. What I found was what was left of a drain snake. I ask the owner if someone had cleaned the drain and his response was about 6 months ago. That was the same time that the bedroom was getting flooded. So the people who were renting were only able to take sponge baths before the bathroom would flood. I figured who ever was cleaning the drain broke the drain pipe when I was able to remove dirt to get were the drain took a 90 degree angle the pipe was busted. I ended up renting the jack hammer again. As I continued to knock out concrete it just got thicker. I had remove 4 feet before the pipe had a 45 degree angle. It was at the end of the tile I removed. That was were I found the pipe to be not broken. I managed to replace the pipe.
I forgot to mention that the toilet was about 2-3 inches from the tub. So I had to remove the toilet to remove the tub. Once I had the plumbing back together I checked to see if would drain. Nope it would not drain. After looking at everything I realized that there was no vent pipe anywhere. After taking to the owner he said the renters were always plunging the toilet to get it to work. Oh yeah about 1 foot from the toilet was a sink that stopped draining years ago. I ended up climbing up on the roof. About were the sink was what appeared to be a vent pipe. I tried running a snake with no luck. I went back inside figured were the vent pipe might be and cut out the drywall. I didn't mention that the tile went from floor to ceiling in the bathroom. I cut the hole in the hallway. After cutting into the vent pipe about 4 feet up the wall. Only place with out tearing out the door jams. I placed a clean out there then ran a snake down the vent. As I took my time the said that the snake was coming out from the tub drain pipe. After running the snake for about 5 minutes I decided to see if it was the problem. Running water in the drain it flowed with no problem. Not only was the walls of the bathroom tiled up the wall but on the other side of one wall was the original bathroom tiled all the way up Then on another wall the kitchen was located tiled all the way up the wall. Oh yeah so were the floors through out the house. After getting everything back together I informed the owner to get rid of the house before he has to rip the whole house apart in order to replace all the plumbing. I told him it might be cheaper to tear the house house down and rebuild it. Make this story short he put the house on the market "as is". the following week. The first offer he took it with a 😁 smile on his face. He sold it about 10 percent under asking price of the other house in the neighborhood. A couple of months later came the housing crash. Right after the person who brought the house sold out to someone who was going to build apartments. As the lots in the area were really large lots. That person broke even. Better than losing money from the housing crash.

[allanmallari]

I want to install a new bathroom in my basement and my plan is to connect all the plumbing to existing vent which has already vented do you think is it okay for not making a dry vent for air for my basement?

[therealSIRBOOM]

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?

[JavierGarciajaviercobito]

Can we connect 3 fixtures to one vent??

[Minecraftangle]

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

[jwblount]

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.

[johnblessing]

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?

[kathyern]

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

[JB-jkow]

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.

[Roy-ijwq]

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

[traebagley]

2:57 “all minor fixtures downstream of a major fixture must be individually vented. This wouldn’t work where I’m at (NC)