The addition of a garbage disposal has been called a necessity for most households. An InSinkErator brand Badger 5 is considered by many to be a dependable choice. To the layman, installing an InSinkErator Badger 5 garbage disposal may seem to be an impossible task that would require hiring the expensive services of a plumber. In reality, the task can be completed by a homeowner with average skills.
Replacing the Sink Flange
Disconnect the existing plumbing from the sink flange and remove the flange by unscrewing the flange nut from the bottom of the sink.
Clean the area around the old flange seat with a putty knife.
Form plumber's putty into the shape of a rope ½-inch in diameter and long enough to cover the entire flange seat surface.
Insert the new flange with the rope of plumbers putty attached to the flange seat into the sink and press down firmly, seating the flange.
Install the fiberglass gasket from beneath the sink, followed by the backup flange and the mounting ring. Secure the flange assembly parts with the locking ring.
Tighten the mounting screws on the mounting flange with a straight screw driver to permanently secure the flange. The mounting screws must be tightened evenly to insure proper installation.
Prepare the Badger 5 for Installation
Turn the Badger 5 on its side and knock out the dishwasher drain plug by inserting a screw driver into the dishwasher drain hole and striking the screw driver with a hammer to dislodge the plug If the installation site is equipped with a dishwasher. The plug will fall inside the disposal and must be recovered from the inside of the InSinkErator before installation.
Unscrew the electrical cover plate from the bottom of the disposal with a Phillips screwdriver and remove the wires from the inside.
Disable power on the disposal's circuit. Install the appropriate cable connector for the type of wiring being used into the access hole in the bottom of the disposal . Install wiring from the power supply box through the cable connector and connect the wires from the cable to the appropriate wires on the disposal ensuring that the hot lead from the box is attached to the black wire on the disposal. Use wire nuts to lock the wires together. Attach the disposal's ground wire and the ground wire from the box to disposal using the grounding screw. Tuck all the wiring back into the disposal and replace the electrical cover plate. Tighten the cable connector to secure power supply cable.
Trim the discharge tube with a hack saw, if necessary, in order to allow the drain to properly connect to the existing plumbing.
Install the drain pipe to the disposal by first inserting the gasket into the disposal and securing the drain pipe to the disposal with the two bolts that come with the InSinkErator.
Mounting and Final Installation
Align the three mounting tabs with the mounting flange. When performing this task, position the drain pipe 1/3 of a turn to the left of the existing plumbing. This will ensure that the disposal's drain pipe will line up with the existing plumbing when the installation is complete.
Insert the wrenchette tool that comes with the InSinkErator into the holes in the mounting tabs and turn the disposal to the right until it locks in the mounting tab.
Connect the existing plumbing to the Disposal's drain pipe and tighten with the use of a channel lock pliers.
Connect the dishwasher drain hose to the dishwasher connection, if applicable.
Turn on the power to the disposal's circuit and test the unit. Check for plumbing leaks and leaks around the sink flange to complete the installation.