First timer: Replacing double sink with single bowl

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BubbleBath

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Hi all, I replaced a double bowl kitchen sink with a single centre drain. I want to try the drain plumbing myself. Here's a mockup of what I want to do. X is what I'll cut off. I will remove that dishwasher adapter. Then add a 90 to align with the drain. And add a tailpiece like
the attached for the dishwasher connector. Does this sound ok or am I missing anything? I assume the 90 will need to be glued?
Thank you.
 

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We would simply cut out the glued assembly to the wall stub out, and redo it in tubular plastic slip-joint p-trap
 
Would it be ok if I cut at the red line and add a 45 there (purple) ? The wall pipe doesn't HAVE to bend down at the wall does it?

Then run a few inches straight to meet the ptrap which will be directly below the drain.
 

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Yes, you can probably do that. There is a maximum dimension between the P-trap weir and the vent, but if this is a standard layout, the vent is probably just inside the wall.
 
This is what I dry fit. What do you think?

Also, if I put a hub x sj trap adapter at the wall stub, would it be ok?

Thank you
 

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Looks good I had the wye in there for clean out, but your fine with that union style trap
Thank you.

Is it ok to use a union at the wall stub? So that in the future, I can just take off the front side instead of cutting the wall pipe shorter?
 

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