Remove a lost screw

A screw from a lid casme off and went down the serated inlet holes around the center. I tried taking the first 8 tourques off ( now there are two screws in tere) and seeinf if I could get to them? Nope. tried removing the 1/4 screw but I’m scared to twist any harder, I’ll either break the plastic 1" housing or strip the 1/4" screw at this rate.

One: how do I proceed to get them out?

Two: If it wont trash my insides or impeller, can i just take the drain house that goes to the disposer, stick it in a bucket and the
hope the screws show up? In other words? is it sealed up so the
loose screws wont do damage?

usualy screws cant come into contact with impeller should be a plastic screen around impeller houseing

Brian,

What is the complete model number of the dishwasher?

Gene.