Step 4 · Prepare the Disposal Unit

This is the step people usually slow down on. Go finger-tight first, then a quarter turn. No rush — replay the clip whenever it helps.

Before mounting the disposal, you must prepare it. If you are connecting a dishwasher, lay the disposal on its side and locate the dishwasher drain inlet. You will see a knockout plug inside the inlet. Insert the tip of a screwdriver into the inlet and tap it firmly with a hammer to knock the plastic plug out. Reach into the grinding chamber and retrieve the loose plastic plug. If your disposal did not come with a power cord pre-attached, you will need to install one now by following the manufacturer's specific wiring instructions.