Project Guide

How to Install a Garbage Disposer

1
WIRE THE DISPOSER
Wire the disposer - Install Garbage Disposer
  • Remove the cover plate beneath the disposer.
  • Connect the appliance cord if the disposer doesn’t come with one.
  • Most cords and disposers have the same colored wires. Connect white to white, black to black, and the green wire to the disposer’s ground screw.
  • Read the manufacturer’s instructions for wiring if the colors are different.
2
APPLY PLUMBER’S PUTTY
Apply plumber’s putty - Install Garbage Disposer
  • Press a rope of plumber’s putty onto the underside of the drain flange.
  • Insert the flange into the drain hole and press down evenly.
  • Install the backup ring, fiber gasket and mounting ring from beneath the sink.
3
INSTALL MOUNTING RING
Install mounting ring - Install Garbage Disposer
  • Tighten the mounting screws for the upper mounting ring.
  • Alternate the tightening of the screws to pull the ring up evenly against the sink.
4
MOUNT THE DISPOSER
Mount the disposer - Install Garbage Disposer

Place the disposer into the mounting ring.

  • Make sure the outlet of the disposer is facing the drain pipe connection.
  • Turn the lower ring clockwise until the disposer is supported by the mounting assembly.
5
CONNECT OUTLET TO P-TRAP
Connect outlet to p-trap - Install Garbage Disposer
  • Use a hacksaw or tubing cutters to measure the discharge pipe and cut it to length.
  • Install the discharge pipe to the outlet of the disposer.
  • Attach to the drain line with slip nuts.
6
TIGHTEN MOUNTING LUG
Tighten mounting lug - Install Garbage Disposer
  • Insert a screwdriver or disposer wrench into the mounting lug on the lower mounting ring.
  • Turn clockwise until the disposer is locked into place.
  • Tighten all slip nuts snug using water-pump pliers.
  • Run water into the sink.
  • Turn on the disposer and check for leaks.
  • Tighten fittings if necessary.