I'm new here so not sure if my earlier question was posted or not. We have a dual kitchen sink and after the plumber came out last week and "Clobber"-ed it and then a day later brought a dual eel out our sink drained for a few days. Now the garbarge disposal side is not draining but the other side is draining well. He says we need to dig up the conrete to clean something else out, maybe the 'vent' for about $1500 - $2000. Does this sound right?

We show you made 2 posts so far about 1.5 hours apart. You need a new plumber, this one sounds like he is nuts or trying to take you to the cleaners IF both sinks have drains that come together under the sink. Open the cabinet doors and see if you see the drains come into one common pipe that goes into the wall after the trap. If so, call 3 new plumbers for bids. YouTube - Double Bowl Sink with Garbage Disposal Drainage Installation - Keeney Manufacturing