^ here is what we did so far
1. changed the disposal with a new one: still backed up
2. returned new disposal and just ran a straight pipe from the sink to drain: still backed up
3. with the straight pipe still in place, we tried snake and all possible chemical solutions: still backed up
what is there left to do and what do you think is the problem? you think the roto rooter idea is the best bet and go in there with a camera?