So I decided to redo the kitchen island drains and supply lines.

The 2" drain came up through the slab floor - no vent. Bunch of sharkbite elbows.

BEFORE:





Since the floor is slab I have no choice but use an AAV so I ran two separate p-traps unstead of uniting them with a center tee.







After it's done I realized I didn't put in a cleanout. So I guess I need to take it apart. Where is the best place to insert a CO?

Is there a fitting like a double san tee, but instead of back to back, they are 90 degrees to each other?

Or should I do the double wye sitting horizontal with two drains and a middle CO?

Can't believe with all the posts I read here about not putting in a CO I forgot to do one.



Edited 1 times.

By the way, I was looking for a dual shutoff valve 1/2" compression inlet and two 3/8" outlets one for faucet one for dishwasher. How come Brasscraft dones't make those in quarter turns?

I am not sure about Brasscraft, but some companies do make them. The cleanout goes between the upper tee and the AAV.

No cleanout needed now that the job is done. Just remove disposer trap arm and snake thru trap adaptor.

So can I just cut the pipe above the top san tee and insert a test tee there with a CO plug or will that be too high?

m & m I was thinking the CO would face outward, instead of turned to face wherever the p-traps were facing due to the locations of the drains, and it would be 2" instead of 1-1/2".

That will be fine.

Should I set the AAV as high as possible inside the counter?

Since the AAV is a solvent weld connection and if it breaks I need to cut it and put in a new one. If I have to replace it three times in 10 years I might run out of pipe right?

Yes, the AAV goes as high as it can under the countertop.

When it is time to replace the AAV (I have yet to replace one), you could then install a no hub coupling.

Sum, check our sponsor. 1/4 turn dual outlet compression stop valves (Eastman):

Fixitangel, that is illegal in my area. each fixtures has to have it's own valve

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After you cut this one out, replace it with one with a glue on adapter and screw in thread, so you don't have to worry about running out of pipe.

Does anyone put the kitchen cleanout on the outside wall? seems to me to make sense if it is close.

I think the issue would be a CO would be an eyesore if it is placed in a accessible spot with room to operate. Even with a CO access cover it is not too appealing. In my case the dishwasher is to the left so that is out.

ALWAYS, even when the sink is on an inside wall. It makes it easier to access if you do not have to fight a bunch of items and a garbage disposer to reach it.

quote; Even with a CO access cover it is not too appealing.

Even if that were so, most people get over it in a matter of days and do not even notice it any more. Usually they have a piece of furniture in front of it and would not know where it was if I asked them.

HJ
Do you ever use a wider pipe necked down to the drain pipe to improve the snake access to the drain pipe.

NO, never had a reason to do that.