Turn off power to the garbage disposal at the breaker
Unplug the unit from the outlet under the sink, if applicable
Shut off the water supply if needed
Place a bucket under the sink to catch water
Disconnect the drain trap and discharge pipe
Disconnect the dishwasher drain hose, if attached
Support the disposal and twist it off the mounting ring
Remove the old mounting assembly from the sink flange
Clean the sink opening and remove old plumber’s putty or sealant
Install the new sink flange and mounting assembly
Apply plumber’s putty or sealant as required
Mount the new garburator onto the mounting ring
Connect the drain pipe and tighten all slip nuts
Reconnect the dishwasher hose, if applicable
Plug in the unit or hardwire it according to instructions
Restore power at the breaker
Run water and test for leaks
Turn on the garburator and confirm proper operation