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A step-by-step guide on How to Install a Garbage Disposal


garbage disposal replace DIY
garbage disposal

Installing a garbage disposal is a practical and convenient addition to any kitchen. It can help reduce food waste and make cleanup easier. Here's a step-by-step guide on how to install a garbage disposal:


Materials Needed:



Step 1: Gather Tools and Materials

Ensure that you have all the necessary tools and materials before starting the installation. Check the contents of your garbage disposal package to confirm that everything is included.


Step 2: Turn Off Power

Before doing any work, turn off the power to the kitchen's electrical circuit. Locate the circuit breaker panel and switch off the breaker corresponding to the kitchen. Use a voltage tester to confirm that the power is off.


Step 3: Remove the Old Disposal (If Applicable)

If you are replacing an existing garbage disposal, start by disconnecting it. Turn off the water supply to the sink, disconnect the drain lines, and remove the old disposal. Loosen the mounting bracket and lower the disposal unit.


Step 4: Prepare the Sink

Remove the old putty or gasket from the sink flange area. Apply a thin bead of plumber's putty around the underside of the new sink flange and place it into the sink drain opening.


Step 5: Install the Mounting Assembly

Place the backup ring, fiber gasket, and mounting ring onto the sink flange from underneath. Tighten the mounting ring with a screwdriver. Follow the manufacturer's instructions for your specific model.


Step 6: Mount the Garbage Disposal Unit

Hang the garbage disposal unit on the mounting assembly by aligning the three mounting tabs with the mounting ring. Rotate the disposal unit to lock it in place.


Step 7: Connect the Discharge Tube

Connect the discharge tube to the disposal unit's discharge opening. Use a screwdriver to secure the connection with the included spring-type clamp.


Step 8: Connect the Dishwasher Drain (If Applicable)

If your dishwasher drains into the garbage disposal, remove the knockout plug from the disposal unit's dishwasher inlet. Connect the dishwasher drain hose to the inlet and secure it with a hose clamp.


Step 9: Secure the Disposal Unit

Use an adjustable wrench to tighten the mounting bolts on the mounting assembly. Ensure that the garbage disposal is securely attached to the sink.


Step 10: Test the Installation

Turn on the water supply to the sink and check for any leaks. Run water through the disposal unit to check for proper drainage. Turn on the power to the disposal at the circuit breaker and test its operation.


Congratulations! You have successfully installed a garbage disposal. If you encounter any issues or have questions during the installation process, refer to the manufacturer's instructions or seek professional assistance.

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