How Hard Is It to Replace a Garbage Disposal?
Replacing a garbage disposal is generally a manageable DIY project for homeowners with basic plumbing skills, though complexity can vary depending on the existing setup. It’s typically a moderately easy task, often completed in under two hours, but certain situations may require the expertise of a professional plumber.
Introduction: The Humble Home Appliance
The garbage disposal, often overlooked, is a workhorse in the modern kitchen. It efficiently pulverizes food waste, reducing trips to the trash can and minimizing odors. But, like any appliance, it eventually wears out or malfunctions. Replacing a faulty garbage disposal can seem daunting, but with the right tools and understanding, it’s a task many homeowners can tackle themselves.
Benefits of DIY Garbage Disposal Replacement
Choosing to replace your garbage disposal yourself can offer several advantages:
- Cost Savings: Avoid the labor costs associated with hiring a plumber, potentially saving hundreds of dollars.
- Convenience: Schedule the replacement at your own pace, without waiting for a professional’s availability.
- Empowerment: Gain valuable home improvement skills and a sense of accomplishment.
- Faster Resolution: Address the issue immediately, preventing further inconvenience and potential sanitation concerns.
The Replacement Process: A Step-by-Step Guide
The following steps outline the general process of replacing a garbage disposal. Always consult your new disposal’s instruction manual for specific guidance.
- Safety First: Turn off the power to the disposal at the circuit breaker. This is crucial to prevent electrical shock.
- Disconnect Plumbing: Disconnect the drainpipe from the disposal. Have a bucket handy to catch any remaining water.
- Detach the Dishwasher Drain: If your dishwasher drains into the disposal, disconnect the drain hose.
- Loosen the Mounting Ring: The disposal is held in place by a mounting ring. Use a screwdriver or special tool (often included with the new disposal) to loosen this ring.
- Remove the Old Disposal: Once the mounting ring is loose, the disposal should detach from the sink flange. It may be heavy, so support it with your other hand.
- Disconnect Electrical Wiring: Carefully remove the wiring cover plate and disconnect the wires. Note the wiring configuration before disconnecting.
- Prepare the New Disposal: Attach the power cord (if needed) and connect the wires, matching the configuration of the old disposal.
- Install the Mounting Ring: If you are replacing a disposal of a different model, you might need to replace the mounting ring. Carefully install the new mounting ring.
- Attach the New Disposal: Lift the new disposal into place, aligning it with the mounting ring. Twist the mounting ring to secure it.
- Reconnect Plumbing: Reconnect the drainpipe and dishwasher drain hose.
- Test for Leaks: Turn the power back on and run water through the disposal. Check for leaks around the connections.
- Final Checks: Ensure the disposal operates smoothly and there are no unusual noises or vibrations.
Essential Tools and Materials
Having the right tools and materials on hand will make the replacement process much smoother. Here’s a checklist:
- New Garbage Disposal Unit
- Screwdriver (Phillips and Flathead)
- Pliers
- Adjustable Wrench
- Bucket
- Plumber’s Putty
- Electrical Tape
- Safety Glasses
- Gloves
- Rag or Sponge
- Mounting Wrench (often included with the new unit)
- Wire Strippers/Crimpers
Common Mistakes to Avoid
Avoiding these common mistakes can help ensure a successful garbage disposal replacement:
- Forgetting to Turn Off the Power: This is the most dangerous mistake. Always disconnect the power at the breaker.
- Incorrect Wiring: Mismatched wiring can damage the disposal or cause a short circuit. Double-check the wiring diagram.
- Over-tightening Connections: Over-tightening can crack plastic pipes or damage the disposal. Tighten firmly, but not excessively.
- Forgetting Plumber’s Putty: Plumber’s putty creates a watertight seal around the sink flange.
- Ignoring the Instructions: Always read and follow the manufacturer’s instructions for your specific disposal model.
Knowing When to Call a Professional
While many homeowners can replace a garbage disposal themselves, certain situations warrant professional help:
- Complex Plumbing: If your plumbing is old or complex, or you encounter unexpected issues.
- Electrical Problems: If you are uncomfortable working with electrical wiring.
- Leaking Issues: If you are unable to stop leaks after reconnecting the plumbing.
- Lack of Experience: If you have no prior plumbing experience.
- Physical Limitations: The disposal can be heavy and awkward to maneuver.
Comparing Garbage Disposal Models
| Feature | InSinkErator Evolution Excel | Waste King L-8000 Legend Series |
|---|---|---|
| Horsepower | 1.0 HP | 1.0 HP |
| Grinding Stages | 3 | 1 |
| Sound Level | Very Quiet | Moderate |
| Warranty | 7 Years | Lifetime Mechanical |
| Price | $$$ | $$ |
Frequently Asked Questions (FAQs)
How long does a garbage disposal typically last?
A well-maintained garbage disposal typically lasts between 8 and 15 years. Factors such as usage frequency, the types of food ground, and proper care can significantly impact its lifespan.
What size garbage disposal do I need?
The ideal horsepower depends on your household size and usage habits. A 1/2 HP disposal is usually sufficient for a small household, while a 3/4 HP or 1 HP model is better suited for larger families or frequent use.
Can I replace my garbage disposal with a different brand?
Yes, you can replace your garbage disposal with a different brand, but you may need to replace the mounting assembly. Ensure the new disposal is compatible with your existing sink and plumbing connections.
What can I NOT put down my garbage disposal?
Avoid grinding fibrous foods like celery and asparagus, grease, coffee grounds (in large quantities), bones, and non-food items. These can clog or damage the disposal.
How do I clean my garbage disposal?
To clean your disposal, grind ice cubes with lemon or lime wedges to freshen and clean the blades. You can also use a mixture of baking soda and vinegar, followed by hot water.
How do I prevent my garbage disposal from smelling?
Regular cleaning, as described above, is crucial. Running citrus peels through the disposal can also help eliminate odors. Avoid grinding oily or greasy foods.
What do I do if my garbage disposal is jammed?
First, disconnect the power. Use tongs or pliers to remove any visible obstructions. Some disposals have a reset button on the bottom. Press it to restart the motor.
Is it worth repairing a garbage disposal, or should I just replace it?
This depends on the nature of the problem and the age of the disposal. If it’s a minor issue and the disposal is relatively new, repair might be worthwhile. However, if the disposal is old or the repair is costly, replacement is often the better option.
Do I need plumber’s putty for installation?
Yes, plumber’s putty is essential for creating a watertight seal between the sink flange and the sink basin. This prevents leaks around the disposal.
What type of electrical cord do I need?
Most garbage disposals do not come with a pre-attached power cord. You will need a three-wire power cord that is suitable for the amperage of your disposal. Ensure it meets local electrical codes.
Where can I find the model number of my old garbage disposal?
The model number is usually located on a label on the side or bottom of the disposal unit. This information is helpful when purchasing a replacement.
Are there any rebates available for energy-efficient garbage disposals?
Some utility companies offer rebates for purchasing energy-efficient appliances, including garbage disposals. Check with your local utility company to see if any rebates are available.