Learn How to Replace Your Own Garbage Disposal

Posted on: 29 May 2015

If your garbage disposal has gone out on you, it is possible for you to install a new one yourself. The first thing you want to do is make sure you are up for the job. You are going to be working under the sink, so make sure you tinker around under there a little to see that you are comfortably able to do so. If you feel you can do the job, then follow the instructions in this article to replace the garbage disposal on your own.

Tools needed

  • Philips screwdriver
  • Knee pads
  • A clean rag

Instructions for removing the old garbage disposal

The very first thing you need to do is to make sure the power is off to the garbage disposal. You also want to turn off both the hot and cold water for the sink.

On the disposal you will see a drain trap. It's connected to the garbage disposal's discharge tube. You need to disconnect the drain trap by unscrewing the connector ring by hand. You'll then need to disconnect the slip fittings, as well as the dishwasher inlet hose. Be aware, your garbage disposal may not have a dishwasher inlet hose connected. Use the rag to wipe up any water.  

Use one hand to make sure you are holding the garbage disposal securely while you use a Philips screwdriver to unscrew the disposal from your sink. Be prepared for it to fall out of the sink once it is unscrewed.

Take the disposal and remove the electrical plate by unscrewing it. The plate is located on the bottom of the unit. Take off the cable connector and remove the wire nuts and green screw.

Installing the new garbage disposal

You can use the same mounting equipment if you want. Take the new disposal and install it in the same manner you took out the old unit. Make sure you tighten the cable connector securely.

Hold the unit in one hand while you screw it onto the sink. Connect the slip fittings and the drain trap to the discharge tube, hand tighten the connector ring. Once you verify the garbage disposal is securely in place, then you can turn the power and water back on and give the new disposal a try. Make sure you run a little water in the drain before using the unit for the first time.

If you don't feel prepared to replace your own garbage disposal, then you should call out a plumber like C J Plumbing & Heating to replace it for you.