Step 8 · Mount Garbage Disposal and Connect Dishwasher
Wait for the silicone to cure according to the manufacturer's directions (typically several hours, but 24 hours is best) before removing the 2x4 and clamp supports. Once cured, you can proceed to connect the plumbing. Lift the garbage disposal unit up to the mounting flange and rotate it to lock it into place according to its instructions. Connect the dishwasher drain hose to the inlet port on the disposal, ensuring you first knock out the plug inside the port with a screwdriver and hammer if it's a new disposal.