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Hey Wayne thanks a lot for that feedback, yes I just wanted to use 2 inch pipe for the shower drain, connecting that to the toilet branch with a wye, and the lav can have 1 1/2 pipe also connecting to the toilet with a wye fitting. The 3 inch drain leaving will be connecting to a 4 inch drain...

Good afternoon guys, I had a discussion last week about wet venting a bathroom group, Hopefully someone here can shed light on this configuration, my county uses the 2018 IPC in PA, The picture is suppose to represent a 2 inch shower drain branching on the toilet drain with a wye fitting and...

Yes that’s what I was lost on as the main line is going the opposite way but i do get the picture now thanks for the clarification, but still lost on that fitting I can use there.. is it optional to use a sanitary tee on its back or just a wye fitting the drawing looks as if I could and should...

Yes and I thank you for that it was much appreciated and a learning curve for me it just looked funny alittle because the main drain is going the opposite way downwards and was not sure if I should run the lav sloping towards the shower for drainage but am being told the ipc will allow you to...

I’m sorry, maybe it’s me today. I understand but then I don’t so bare with me. If the (blue) drain line from the wet vented lav connects to the shower is this being sloped downwards that way connected with a wye fitting or can i use a sanitary tee on the shower drain to make this connection...

Goodmorning all, @Reach4 You suggested that I run a 2 inch line intersecting the shower drain is it possible you can explain this to me as I’m having a hard time understanding what’s either draining to/from I guess from the drawing is the shower venting to or from the lav any help would be...

gotcha! So pretty much to kill all of the extra pipe I can just either use an AAV for the kitchen sink which will have 2 inch pipe anyways and wet vent the bathroom with 1 wet vent instead of having loops everywhere huh I really appreciate you guys help.

I think I understand now, the kitchen sink can be vented from the 3 inch line from the left side venting of the home, the laundry sink/washer box can drain in that same line, when I get to the right side the shower can drain with the lav into a wet vent along with tub and toilet which means the...

I didn't know I could wet vent like that to be honest you learn something new everyday, am I correct the sink and washer machine will drain into the 3 inch pipe coming from the other bathroom, and the blue will be the for the wet vent? my guess is to use an AAV on the kitchen sink which will...

Yes, I believe the toilet, shower and tub can be dry vented which is why they made the plumbing plans like this I actually asked for them to do it like that because of the foundation it seems to me that all the vents in the home need to be in a interior wall no exterior. as you see from the...

No I don’t have a problem with wet venting if anything i could probably re-arrange something but my understanding, of a wet venting is a fixture drains in the same vent this is different, again my foundation will not allow me to put holes in it as it’s solid meant for a wall, the only bathroom...

Yes 2018 ipc I’m in pa

Yes, horizontal vent pipes can be in the floor according to the 2018 IPC, but they must be installed in a way that prevents water from backing up into them and must be at least 6 inches above the flood level rim of the fixture they serve. Here's a more detailed explanation: Horizontal Vent...

No basements, no crawl spaces this is a concrete slab, and the dry venting played out that way because of how the fixtures are layed out, apparently I have enough space from every wall inside the foundation to do the plumbing and come off the drain line from fixtures to do dry venting the vents...

No in reality these will be dry vented it’s hard to explain when your not right in front of it but obviously the drain pipe will be alittle lower than the vent pipe, the drain pipe will be branched off and the vent pipe will sit on top of that again which will look something like this every...

If you can see the top part is solid that will be the lip the walls will sit on no holes can go thru that

My apologies, yes I have a superior wall foundation that is going to be for a slab this is not a poured foundation pretty much my foundation is mandating the choice as it’s designed for the walls exterior walls to sit on them I cannot and repeat Cannot drill holes for pipes where the wall sits...

Those are just pictures that gave me an idea of using a sanitary tee off a drain line for fixtures but the floor plan is mine, again there is no way that I can chew away at the exterior of the foundation for a pipe hence why I wanted to run the vent pipes off the the drain lines coming from the...

I’m glad you understand my question, unfortunately, all fixtures are on the same floor as far as I can tell every fixture on the right including the kitchen sink will be dry vented, I have the idea in my head that I could branch off every fixture with a sanitary tee or wye and 45 takeoff and...

I tried to show a sanitary tee branching off the fixtures connecting to a vent line if this makes it better and they all connect to a main vent stack going in a interior wall and thru the roof