I should have clarified that I am switching to a single new sink. The pipe I placed between the two existing sinks shows the approximate location of the new garburator.
Below the island is a tenant suite, so I would much rather avoid putting the P-trap below the floor.
For a single-sink setup with the garburator in that mocked-up location, would you leave the garburator 90 as-is and offset the drain after the vent connection, like in the second picture, or would you extend the garburator discharge before the trap, like in the first picture?
Simpler! Connect trap adapter to the 90 out of the garby, then a short piece of abs into your ptrap. Connect the horizontal arm of the ptrap to a to a tee, the AAV to the top of the tee, the drain to the bottom. .
The pic below shows the connections, you probably have a slightly different 90 out of the gsrburator - likely retained with a plate and sealed with a gasket.
You can swivel the garby, the swivel point in the ptrap and adjust the length of the horizontal trap arm to get a straight shot to the existing drain - no 45s should be required.
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