How to Install an Insinkerator Garbage Disposal

Insinkerator disposals come in a variety of styles and strengths. Basic disposals are 1/2 horsepower while the professional models range from 3/4 to 1 horsepower. The professional models are better for the environment and your plumbing because they grind the waste up to three times, virtually liquifying the food. No special skills are required to install the disposal, which should take about an hour.

Plumber's putty
Screwdriver
Hammer
Chisel

Instructions

- 1
  Spread plumber's putty around the underside of the mounting flange and insert the flange into the sink opening.
- 2
  Slide the mounting bracket onto the flange under the sink and secure with the retaining ring.
- 3
  Knock out the dishwasher plug with a hammer and chisel, and then turn the disposal upside down to remove the plug.
- 4
  Install the electrical pigtail, according to the manufacturer's instructions, on the bottom of the disposal.
- 5
  Connect the disposal's drain with a bolt or nut, depending on your model.
- 6
  Lift the disposal into the mounting bracket and slide the lower mounting bracket onto the upper. Tighten with a screwdriver.
- 7
  Connect the disposal drain to the kitchen sink drain with slip joint fittings.
- 8
  Push the dishwasher drain onto the disposal connection and secure with a clamp.
- 9
  Clean the excess plumber's putty off the flange in the sink.
- 10
  Plug in the pigtail to the wall outlet. Turn the faucet on and check for leaks.

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