New Kitchen countertop and sink- now a drain issue

[carados]

When i moved in there was a 5.5 inch top mount sink-this just would not do i changed to a 8.5 or 9 in top mount sink and upgraded the garbage disposal, well i made do with an extended p trap and just dealt with the occasional smell and cleaning the sink pipes once a year to fix it. fast forward. now i just had granite put in and a under mount sink, well now my problem is compounded. The only thing i can think of is going into the wall and lowering the drain pipe. I have to cut the drywall out on an attaching wall to get to the pipe, i am hoping that it goes into the slab, i can not see anywhere else it would go. I am open to suggestions

 

[hj]

I would go with two "P" traps into a "Y" fitting. You would have to cut the existing pipe short enough to install an elbow then place the Y somewhat behind the disposer.

 

[Sponsor]

 

[carados]

im not opposed to shortening the pipe, i was going to have to cut it anyway in order to move it down. im not sure there is enough room for the "y" fitting, also would i just go directly from the disposal to the ptrap?

 

[hj]

Once you turn the corner and the pipe goes behind the disposer, there IS room for the Y if it is installed correctly. The disposer would go to one trap and the sink to the other.