How to Replace Kitchen Sink Disposals

Disposal Removal

• 1

  Turn off the water and electricity to the area. Typically, the water shutoffs are under the sink. Turn the hot and cold water connections to the sink to the "off" position. Identify the electrical breaker for the kitchen and turn it off.

• 2

  Place a bucket under and remove the P-trap. This is the downward curve of the sink drain that connects to the disposal. Loosen the connectors with a wrench and remove. Standing water will be released into the waiting bucket.

• 3

  Remove connecting pipe from the disposal. There is usually a small piece of pipe between the P-trap and the disposal. Remove using a wrench.

• 4

  Disconnect the electrical wiring from the disposal. The power cord is typically located at the bottom of the unit. If the unit does not have a removable plug, skip this step.

• 5

  Unscrew the disposal mount from the sink. The mount will held to the bottom of the sink with large screws or bolts. Grasp the disposal and loosen the bolts or screws until the unit comes loose. Remove the disposal from the area.

Installing a New Disposal

• 6

  Ensure that water and electricity to the kitchen are turned off.

• 7

  Install the mount under the sink. The mount will screw or bolt under the sink.

• 8

  Connect the P-trap to the unit. Typically, a small piece of piping is used to connect the unit to the P-trap. Put the small piece of piping in place, tightening with a wrench. Connect the P-trap to the piece of piping and then to the drain. Tighten to secure.

• 9

  Plug in the unit. Consult with the manufacturer's installation guide for the proper electrical hookup for the particular model.

• 10

  Turn on the electricity and the water to the area. Test the unit, running water in the sink before turning it on.