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Can a santee be laid on it's side for venting? I'm trying to tap into the existing overhead horizontal vent to vent the shower. This is the only reducing fitting I have on hand. If it's an issue, I could run out to the store.

I think the bathtub vent is too far away to allow for proper venting for the shower. The bathtub and shower are in two different bathrooms. I made an attempt to drain a plumbing diagram. Not the best but I think it's readable?? The shower p-trap is about 11' from the bathtub's vent. That...

Turned the vent around and drilled out a hole for the vent to come up thru the baseplate of the shower. Will glue up tomorrow. Thanks again!!

I'll try turning the reducing wye around 180*. Thanks for the help!!!

Good catch. I guess the way I have it setup it, the airflow would technically impede the flow of water from the shower trap to the stack.

I dry fit the 3 waste lines. I had to use a few 22.5* elbows. Yes everything has its own vent. Everything seem ok?

I need to plumb the above fixtures. All pipes are 2" unless noted in diagram. The vents are not drawn but all fixtures are vented. Thanks for the help.

I have a 4-5 split ring hangers with threaded rods & wall plates screwed into the joists holding up the horizontal plumbing I believe you are referring to. The band iron was just to get it pitched correctly. But it is providing some support so I left them.

Ok I sort of understand the concept now. The amount of water being drained from the lavatory is less than what the toilets vent size (2") can handle. Hence no siphoning action. Lav fixture units (1) < Water closet 1.6gpf (3). But when a bathtub's vent (fixture unit =2 ) is draining a...

I’m in brooklyn nyc.

Yeah I splurged on the dewalt expander. Always nice getting new tools. 🤓

Is the water flow from a kitchen sink (dishwasher) too much for the bathtub to vent properly? I never really understood when wet venting is allowed and when its not. This is a 3-bedroom apartment with potentially 3 strangers living together. It's possible that someone is bathing and...

Thanks. I've got a couple more questions: 1. I have the same question for a bathtub and kitchen sink. Can the bathtub be wet vented as per my diagram below? 2. How do you support horizontal runs of drain on the parallel joists? I am working from so I can't screw into the flooring above...

I am running a horizontal toilet line and I don't have enough height in the joist bay to attach the closet elbow to a santee to dry vent. I'm able to vent the adjacent lavatory with a 2" vent pipe. Can I connect the lav drain line to the toilet line (3x2 wye) to create a wet vent? Here's a...

Got it replaced. I still need to cut the vent pipe to install a tee. I'm temporarily using NH couplings to hold it in place. They will be replaced with pvc couplings and a fernco where the plastic joins to metal. First time using Pex. (PEX-A.) I really like it. Kind of annoying holding it...

The left side of the PVC wye is heading toward the soil stack. The right side will be taking in waste from other fixtures. I'll look for a closet el. That seems easier than trying to get my flange at the perfect height. Thanks

Sorry I wasn't clear about the part where I'm using PVC for the fixtures and Cast iron for the soil stack. Thanks for reviewing my plan.

I'm cutting out an old soil stack and replacing it with NH Cast iron stack. I'd like to know if my ball park calculation on where to place my 4 x 3 in. Reducing Combination Tee-Wye on the soil stack is correct. I think the tallest fixtures plumbing will be the toilet. Measured from the toilet...

I'm replacing a hub & spigot cast iron soil stack with a no-hub cast iron soil stack. The replacement section is for the 2nd floor plumbing. The 3rd floor plumbing is all brand new cast iron. I've braced the new 3rd floor soil stack with a riser clamp braced to the 3rd floor subfloor. I also...

My toilet run will require me to run 13' horizontally (1/4" slope). I'm using a 4x3 PVC closet bend. I'd like to use a 3x3x2 or 3x3x 1 1/2" wye (New York City uses IPC which allows 1 1/2" venting on toilets). I'll roll the wye 45*. What is the minimum distance from the wye to the trap...