killivolt is right, and I don't recall you saying it was trailer, but I was gonna ask, it looks like it with those copper supply pipes..

 

oh and that T piece that ties both drains together is a choke point the pipe is split inside so it decreases the chances of water from one side getting into the other, all those fittings should be just a bit better than hand tight, so it would be easy enough to pull them apart clean them out, then put them back together,
be careful using a blader on the sink drain, too much pressure could blow the connections..(on the white under the sink)
and you are right.. i did give you a wrong answer.. thinking about this more I remember pulling those apart and finding all sorts of gunk in that pipe caused from the choke point.. I said "i have never encountered a plug up at the exit pipe of a disposal", that was wrong, I did not recall correctly..

 

killivolt is right, and I don't recall you saying it was trailer, but I was gonna ask, it looks like it with those copper supply pipes..

I do not have a trailer. That misinformation came from the way killivolt phrased one sentence. My house is made of concrete blocks. Almost all of this work was done with whatever was laying around in my truck when I bought the house. That is why it has about 7 kinds and sizes of pipes.

I am happy to find that the arrangement of the Tees, pipes, and traps is acceptable. I believe I will use a toilet kisser whenever the disposer objects to the way it is being treated. That method works, and it is safer than using 40 PSI to shake rotten garbage and filthy scum loose. It is easy enough to open a trap, but it is even easier to jerk a plunger a few times and never touch the biohazard that lives an inch away from the kitchen sink.

 

raising the drain tube up above the dishwashers top creating a anti syphon; if needed install an air gap.

Most trailer are all designed that way; I'm not sure if it's just code now days?
kv

Once again my grammatical mistakes have taken hold of the conversation and twisted it in the wrong direction; the second part was supposed to be more of a question. I'm so far from residential building code; when I went to pick out the supplies for a friend. I forgot I can use Romex; at the Uni I can only install 3 conductor Flex Conduit. The cost difference was outrageous.

Sorry, about that.

kv

 

technicaly, im not a plumber, I am contractor(retired), but plumbing/electric is part of the job..