We currently have a dirty sink rinse table that came (used) with a garbage disposal.

We have to install a grease trap and there’s no room for both.  The problem is the drain for the sink is not fit for the grease trap plumbing.  The hole for the disposal is easily 6-8″ in diameter where the fitting for the grease trap is going to be in th 2″ range. my plumber is not sure what to do.  Have any of you come across an issue like this?

We’re hoping there is an insert or adapter of some sort i cant really afford another dish table.

Cheers

Josh