Move kitchen sink drain and vent options

[koederitzw]

Hello. Looking to see what the best option would be for moving a kitchen sink location. Please see attached images. The sink will be moving approximately 36" to the right (image 1 dashed line is new location). The original drain went directly into location 1 (3"). 1 continues up to be venting. Location 2 (3") is drain from upstairs fixtures (bar sink, dishwasher, ice maker (bar area vented with AAV), 2 vanities, toilet, shower, tub, laundry). Location 3 (2") ties into the venting of 1, and 4 (2") is a vanity drain (vented into 3). There is also location 5 (2"), which supports dual sinks for vanity and has a single AAV vent. This is a mid-rise building with 2 units below. This unit is top floor and has 2 levels.

Options:

1. Keep existing sanitary tee location and extend trap arm ~36" behind stack 2 to to new location (image 2). Would potentially use two 45s to wrap around stack 2 or a 45 and a 90. Any issues with this option?
2. Remove sanitary tee from location 1. Add sanitary tee to location 2 and extend trap arm ~20" to the right and add venting through location 1 (or 3?) (image 3)
3. Remove sanitary tee from location 1. Add sanitary tee to location 3 with smallest trap arm, and is already vented to 1 (image 4)

Not sure how options 2 and 3 may impact units below, if any. Also, would it be preferred to remove the AAV from location 5 and vent directly into 1? This could pair with option 2 for venting (image 5).

Appreciate any thoughts on this.

 

[breplum]

No info on line 3?
Yes, for sure get rid of AAV at 5.
If you option 1, and jog, just remember that the arm AND p-trap should be 2".

 

[koederitzw]

No info on line 3?
Yes, for sure get rid of AAV at 5.
If you option 1, and jog, just remember that the arm AND p-trap should be 2".

Thanks. What info are you not seeing on line 3? I can provide any additional details.

I believe 1.5” fits but 2” may be an issue for option 1

 

[koederitzw]

Looking further, option 3 (image 4) is likely not feasible because that is a vent from below (dry in this unit).

 

[koederitzw]

Any suggestions on option 1 vs. option 2? Thanks.