Hello poor john and thank you for your question.
You can knock out the drain plug of the InSinkErator Badger 1-1/3 HP Continuous Feed Garbage Disposer and remove it for the dishwasher by referring to Figure 16 of the Installation Guide found here: http://www.homedepot.com/catalog/pd...
. Please wear safety glasses to protect your eyes.
Best wishes on your project.