Replace a Garbage Disposal
Remove a failed garbage disposal and install a new one, including electrical and plumbing connections.
Tools Needed
Find Materials Near You
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Instructions
Turn Off Power
Unplug the disposal or turn off the circuit breaker. Never work with power on. Verify with a voltage tester at the outlet under the sink.
Disconnect Plumbing
Disconnect the drain line and dishwasher drain hose (if connected). Place a bucket to catch water.
Remove Old Disposal
Insert a disposal wrench or flathead screwdriver into the mount ring and turn counterclockwise to unlock the unit from the mounting assembly. Lower the unit.
Remove Old Mount (If Needed)
If installing a different brand, remove the old mounting assembly by loosening the snap ring and removing the sink flange and putty from above.
Install New Mounting Assembly
Apply plumber's putty around the drain flange, insert from above, and secure with the mounting ring and snap ring from below. Tighten evenly.
Wire the New Disposal
Connect the power cord wires inside the disposal's electrical cover: black to black, white to white, green to ground. Or hardwire matching the existing circuit.
Mount and Connect
Lift the disposal and lock it into the mounting assembly by turning clockwise. Reconnect the drain line. Restore power and test with running water.
