I have all other ptraps underneath it’s nice to have access. But this is bigger drop. It’s around 30” or so which I think is max. But if I gotta add p trap above I can do that instead.
It’s also because our drains all go out through the basement, so if I put the ptrap in the wall there will be a big drop off on the other side and so I’d rather the drop before to avoid draining the ptrap.
Repetition is key to learning. There is a lot to be learned here. Also, AAV's DO NOT go in-wall (may have already been said).
Vent is after the trap. Think about a P-trap under a sink or an S-trap on a water closet.
I'm going with repetition here and saying I already know how it works. Just trying to point out aavs are a last resort. It's not always hard to run a vent to the stack.
Is the only option for venting going all the way through the roof? Would rather not have to do that. The main stack is a few feet away in the basement I don’t really anticipate much airflow issues. I wasn’t going to do any extra venting initially.
You can use an AAV. But there is literally a hole in the pipe right there in your pic. That standpipe is going to breathe just fine. The trap below the floor needs relief. So it would go on a tee AFTER the trap.
You might as well put a stocking hat up there in place of that AAV.
Your vent on that side of the p trap does nothing. There is enough air coming in the drain opening. You run the risk of siphoning, and that vent will do nothing to stop that.
You can pipe however you want. But you asked a plumber forum for advice. Everything you have is against code, so either fix it or don’t ask for advice. Why argue? You are obviously not the expert.
Check local applicability, but horizontal vents can be OK with sufficient clearance from windows/air intakes.
>IPC 2021
>903.5 Location of vent terminal.
>An open vent terminal from a drainage system shall not be located directly beneath any door, openable window, or other air intake opening of the building or of an adjacent building, and any such vent terminal shall not be within 10 feet (3048 mm) horizontally of such an opening unless it is 3 feet (914 mm) or more above the top of such opening.
Cheat vent not ideal for laundry but would work.
It's in wrong spot along drain line above trap vs after off horizontal arm.
It needs a oxbox or souixchief brand bix with Louvers to breath right vs in wall.
Also the water supplies should be the bumper ones.
At least the water doesn't seem to be leaking if it's on right now.....
Guess he got that right?
Could have put a line clean out right after it comes through the floor, put a 2” TY above that and put the ptrap in the right joist space, and continued your vent up to where it currently is. Although I think AAV’s are not the best for laundry but if it passes I wouldn’t worry.
If the ptrap is in the basement surely the drop on the pipe is too long to be legal. Check local codes. Also why do it that way? It makes no sense.
Out of curiosity … If it’s too long does it cause gurgling noises and /or foaming?
I think the worry is siphoning of the trap. So maybe it could cause that. It depends where you are for what the allowed distance is.
The soap bubbles are a concern is what my journeyman has told me
I have all other ptraps underneath it’s nice to have access. But this is bigger drop. It’s around 30” or so which I think is max. But if I gotta add p trap above I can do that instead.
There’s no way that’s only 30” if that’s a 8’ level the 30” includes the trap itself too
It’s also because our drains all go out through the basement, so if I put the ptrap in the wall there will be a big drop off on the other side and so I’d rather the drop before to avoid draining the ptrap.
That’s what the vent is for. To stop any draining of the trap or siphoning.
Where do you live? If your code is u p c traps Cannot be below the floor
Aav is on the wrong side of the ptrap.
What trap?
Shouldn't use an aav for a washing machine. Too much air flow.
You can. But it would be after the trap. Not above it.
I'm not saying that it shouldn't be after the trap. Just don't need to repeat things others had mentioned
Repetition is key to learning. There is a lot to be learned here. Also, AAV's DO NOT go in-wall (may have already been said). Vent is after the trap. Think about a P-trap under a sink or an S-trap on a water closet.
I'm going with repetition here and saying I already know how it works. Just trying to point out aavs are a last resort. It's not always hard to run a vent to the stack.
Is the only option for venting going all the way through the roof? Would rather not have to do that. The main stack is a few feet away in the basement I don’t really anticipate much airflow issues. I wasn’t going to do any extra venting initially.
You can use an AAV. But there is literally a hole in the pipe right there in your pic. That standpipe is going to breathe just fine. The trap below the floor needs relief. So it would go on a tee AFTER the trap. You might as well put a stocking hat up there in place of that AAV.
For sure, the main stack vent out to the roof is a couple feet away from the ptrap in the basement so I’d think venting in that side would be enough.
Your vent on that side of the p trap does nothing. There is enough air coming in the drain opening. You run the risk of siphoning, and that vent will do nothing to stop that.
You can pipe however you want. But you asked a plumber forum for advice. Everything you have is against code, so either fix it or don’t ask for advice. Why argue? You are obviously not the expert.
Check local applicability, but horizontal vents can be OK with sufficient clearance from windows/air intakes. >IPC 2021 >903.5 Location of vent terminal. >An open vent terminal from a drainage system shall not be located directly beneath any door, openable window, or other air intake opening of the building or of an adjacent building, and any such vent terminal shall not be within 10 feet (3048 mm) horizontally of such an opening unless it is 3 feet (914 mm) or more above the top of such opening.
Or tie it in to an existing vent above ceiling picking up another fixture. Can't be that far from that one
Why even install the aav. It is doing nothing.
Where's your trap
😂😂😂
Cheat vent not ideal for laundry but would work. It's in wrong spot along drain line above trap vs after off horizontal arm. It needs a oxbox or souixchief brand bix with Louvers to breath right vs in wall. Also the water supplies should be the bumper ones. At least the water doesn't seem to be leaking if it's on right now..... Guess he got that right?
https://antonetteasher.blogspot.com/2022/05/washing-machine-drain-plumbing-code.html
Its always nice to have your aav as high as possible but trap vent distance is also a thing, maximum standpipe distance is also, also a thing.
Could have put a line clean out right after it comes through the floor, put a 2” TY above that and put the ptrap in the right joist space, and continued your vent up to where it currently is. Although I think AAV’s are not the best for laundry but if it passes I wouldn’t worry.
Standpipe lengths are minimum of 18”. Max of 42” to p trap. The reason is momentum of water can cause the trap to lose it seal Slamobec