Kitchen sink wont drain

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mary medkeff

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portland, or
We recently installed a new kitchen sink and did the drains ourselves.
However, after running the water for about 4 minutes it starts to back up in the sink. We installed an AAV and snaked the drain(and took it all apart). We know there is no blockage on the "inside" part of the pipes. Could there be a blockage in the wall pipe?

Our sink is quite low, so we're thinking that there isn't enough slope on the drain. But we are having a hard time trying to figure out how to bring our pipes any higher when the dishwasher drain plug has to be before the trap causing us to have a height limit in the pipe before the trap.

Any help is greatly appreciated!


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