Exposed 1.5" pvc at back of cabinet in peninsula island allowed?

[Pghsebring]

Due to moving the kitchen sink away from the wall and into a peninsula (cannot cut floor) and some other design issues with cabinets, I am wondering if it acceptable (Florida) to cut two holes in the side of the sink cabinet all the way at the back and have the 1.5" schedule 40 exposed in the back of the cabinet and vented per my diagram. The sanitee and drain/vent will have to be offset a little so that it doesn't interfere with the single hole faucet. Any issues with this design? Distance to the stack is a little over 6ft (will go through other cabinets in back of them too.)

https://imgur.com/bVtYqOD

 

[Reach4]

Exposed PVC inside the cabinet is OK.

That area of the drawing labeled santee seems odd. That could be a wye, but I don't picture how the santee would be there.

I think most people would figure to be able to rod thru the trap adapter after removing the slip joint trap. If you do vent the kitchen waste close to the sink, the lower right fitting could be a wye or santee.

Even simpler, if the distance from the U of the trap to the vertical pipe is under 6 ft, you could just run with no separate vent. So path would be trap, trap adapter, pipe (1.5 or 2 inch), trap adapter.

 

[Sponsor]

 

[Pghsebring]

Exposed PVC inside the cabinet is OK.

That area of the drawing labeled santee seems odd. That could be a wye, but I don't picture how the santee would be there.

I think most people would figure to be able to rod thru the trap adapter after removing the slip joint trap. If you do vent the kitchen waste close to the sink, the lower right fitting could be a wye or santee.

Even simpler, if the distance from the U of the trap to the vertical pipe is under 6 ft, you could just run with no separate vent. So path would be trap, trap adapter, pipe (1.5 or 2 inch), trap adapter.

Thank you for the response.

That is a santee on a 45 degree angle which is a trick I learned when I was putting in a shower/tub combo and had to keep the drains in-between the joists. Of course if I have the space I can put the 45 on the wye and put the santee perfectly vertical, we will see how it works out when we start punching holes. I try to leave cleanouts because I didn't previously but hate personally when there isn't one.

I want the lower right fitting to be a santee because it is in a block wall and it is more compact than a wye.

I am aware of the 6ft rule. The sink cabinet is the second cabinet in line away from the wall. My problem is if I come in the side of the cabinet and go to the center of the back of the sink cabinet and 90 towards the drain, my total run is about 6.5ft. However, if I come in the side of the sink cabinet and then 45 towards the tailpiece diagonal across the cabinet, I think I'm at exactly 6ft, maybe 6ft1in. But it comes down to how an inspector sees it, how/where they measure, etc, etc, etc. Where on the U of the trap are we measuring from? Where in the stack are we measuring to (front of santee, center of stack, etc, etc, etc)? I need to diagram what I'm going to do before I apply for a permit.

You got me thinking there may be a way to vent my santee in the false wall in front of the block wall and run a 5ft trap arm...hmm...maybe that's the answer. In any case I'm happy to know I can run PVC exposed in the back of the cabinet as necessary, thank you.

 

[Reach4]

For how to measure, see the drawing in https://terrylove.com/forums/index....-length-for-a-shower-drain-2.4013/#post-19002

If it is close, you could offset the tailpiece to let the trap be closer to the vertical pipe.

 

[Pghsebring]

For how to measure, see the drawing in https://terrylove.com/forums/index....-length-for-a-shower-drain-2.4013/#post-19002

If it is close, you could offset the tailpiece to let the trap be closer to the vertical pipe.

I figured out how to put the vent in the wall in front of the concrete block wall. I can keep my arm under 6 ft now. Assuming its under 6ft, is this fine? I do not want to omit a cleanout, but I also don't think I have room to use a wye under there and have the trap adapter in the middle leg (90) of the wye. Do I have to use a long sweep 90 there?