Last week, my old garbage disposal decided to give up the ghost mid-dinner party. The noise was horrendous, and the smell…let’s just say it wasn’t pleasant. It was a disaster! This experience taught me the importance of knowing how to change out garbage disposal, and I’m sharing everything I learned to help you avoid a similar kitchen catastrophe. Learning how to change out garbage disposal will save you money on expensive plumber calls and give you the confidence to tackle this common home repair.
Key Takeaways
- Master the steps involved in replacing a garbage disposal.
- Understand the different types of garbage disposals available.
- Learn how to safely disconnect and reconnect plumbing and electrical connections.
- Gain confidence in tackling home repairs and maintenance.
- Save money by avoiding costly professional plumbing services.
Preparing for the Replacement
This section outlines the essential preparatory steps before you even touch your old garbage disposal. Understanding these steps will ensure a smooth and safe replacement process. Proper preparation minimizes risks and maximizes efficiency. We’ll cover essential tools, safety precautions, and how to shut off the power and water.
Gathering Your Tools and Materials
- Wrench Set: You’ll need a variety of wrenches, including basin wrenches, pliers, and possibly a socket wrench, depending on your garbage disposal’s mounting system. A basin wrench is specifically designed for reaching those hard-to-access nuts under the sink.
- Screwdrivers: Have both Phillips and flathead screwdrivers handy, as you might need them to remove mounting screws or access electrical connections. Different garbage disposal models use different types of screws.
- Bucket and Rags: Expect some water spillage during the process. A bucket will catch the water, and rags will help clean up any messes.
- New Garbage Disposal: Naturally, you’ll need a new garbage disposal! Make sure you measure your old unit to ensure you get the correct replacement size and fit. Consider features and power before purchasing.
- Optional: Safety glasses and work gloves for added protection.
Safety First: Shutting Off Power and Water
- Turn off the power to the garbage disposal at the circuit breaker. Do not rely solely on the switch under the sink; this is a crucial safety step.
- Turn off the water supply to the garbage disposal. Typically, you’ll find shut-off valves under the sink, one for hot water and one for cold water. Turn both valves clockwise to shut off the water supply completely.
- Disconnect the power cord from the disposal.
- Drain any remaining water from the disposal and drain lines by opening the sink faucet.
Removing the Old Garbage Disposal
This section details the step-by-step process of carefully removing your old, malfunctioning garbage disposal, ensuring you do so safely and efficiently. We will cover the disconnection of plumbing and electrical components, providing clear instructions for various connection types.
Disconnecting the Plumbing
- Locate the drain pipes connected to the garbage disposal. Usually, there’s an inlet pipe from the sink and an outlet pipe leading to the main drain line.
- Carefully loosen the slip nuts connecting the drain pipes. Use basin wrenches or pliers to get a good grip on the nuts.
- If you have a dishwasher drain connected, disconnect that line as well. This usually involves loosening a clamp or a slip nut.
- Place a bucket under the pipes to catch any residual water. Be prepared for some spillage.
- Once the connections are loose, carefully separate the drain pipes from the garbage disposal.
Disconnecting the Electrical Wiring
- Carefully inspect the electrical wiring connected to the garbage disposal. It’s usually a simple connection, often with wire nuts.
- Using a screwdriver, remove any mounting screws that secure the wiring to the garbage disposal. Take photos to remember how it is connected.
- Carefully separate the wires, making note of which wire goes to which terminal. Labeling wires with tape can prevent confusion during reconnection.
- Take pictures as you disconnect wiring. This will assist during the installation of the new garbage disposal.
Removing the Mounting Hardware
- Locate the mounting hardware holding the garbage disposal in place. This is often a clamp-like mechanism or screws that attach the disposal to the sink.
- Carefully loosen and remove the mounting hardware. This might require using wrenches or screwdrivers depending on the type of mounting mechanism.
- Once the mounting hardware is removed, the garbage disposal should be free to lift out from under the sink.
- Carefully lower the unit to the floor to avoid damage.
Installing the New Garbage Disposal
This section focuses on the installation of your new garbage disposal. It’s a mirroring process of removal, but with extra attention to ensuring all connections are secure and correctly aligned. We’ll discuss different connection types and crucial considerations for a successful install.
Connecting the Plumbing
- Position the new garbage disposal under the sink, aligning it with the drain openings.
- Carefully attach the drain pipes, tightening the slip nuts securely, but not excessively. Avoid over-tightening, which could damage the pipes or the garbage disposal.
- Reconnect the dishwasher drain line if applicable.
- Check for leaks by turning on the water supply briefly after securing all connections.
Connecting the Electrical Wiring
- Connect the electrical wires to the corresponding terminals on the new garbage disposal. Refer to your photos or the wiring diagram provided with the new unit.
- Secure the wires with wire nuts and ensure the connections are snug.
- Carefully tuck the wires into the designated space on the unit, ensuring nothing obstructs the motor or other moving parts.
- Secure the power cord to the disposal.
Securing the Garbage Disposal
- Secure the new garbage disposal using the mounting hardware that came with the unit.
- Tighten all screws and clamps firmly. Ensure the garbage disposal is stable and won’t move easily.
- Test the garbage disposal by turning on the power and running some water. Listen for any unusual noises or vibrations.
Troubleshooting and Common Issues
This section covers potential problems encountered during garbage disposal replacement and provides troubleshooting tips. Understanding these issues in advance reduces the likelihood of setbacks and facilitates a smooth resolution. We’ll discuss common problems and their solutions.
Common Myths About Garbage Disposals
- Myth 1: You can put anything down the garbage disposal. Reality: Many items can damage or clog your disposal. Avoid putting fibrous materials, bones, hard objects, or grease down your garbage disposal.
- Myth 2: A garbage disposal can handle unlimited amounts of waste. Reality: Overloading your disposal can lead to jams and malfunctions. Process waste in smaller batches.
- Myth 3: A clogged garbage disposal is always a sign of a broken unit. Reality: Sometimes, a simple jam can be resolved with the reset button or a careful extraction of the clog.
Real-Life Case Studies
A homeowner successfully replaced their old disposal after following an online tutorial, saving $150 on a plumber’s visit. In another instance, improperly secured plumbing led to a leak after replacement, highlighting the importance of careful reconnection. Lastly, ignoring the warning signs of a failing unit resulted in a costly emergency repair.
FAQ
What type of garbage disposal should I buy?
The best type of garbage disposal depends on your needs and budget. Consider factors like horsepower (for grinding power), sound rating (for noise level), and features (such as a built-in power switch).
How often should I replace my garbage disposal?
Garbage disposals typically last 8-15 years, depending on usage and maintenance. Signs that it’s time to replace it include frequent jams, unusual noises, leaks, and slower grinding.
Can I replace my garbage disposal myself?
Yes, with the right tools and instructions, most homeowners can replace their garbage disposal themselves. However, if you’re uncomfortable working with plumbing or electricity, it’s best to call a professional plumber.
What should I do if my garbage disposal is leaking?
If your garbage disposal is leaking, turn off the water and electricity immediately. Check for loose connections and tighten the slip nuts. If the leak persists, you may need to replace the disposal or a specific component.
What happens if I accidentally put something down the drain I shouldn’t have?
If you’ve accidentally put something inappropriate down the drain, turn off the power. If possible, manually remove the offending item (using tongs, pliers, or whatever is safe). If unsuccessful, you may need to use a drain snake or call a plumber.
What are the most common causes of garbage disposal failure?
Common causes include overloading, improper disposal of certain items (bones, fibrous materials), build-up of debris, and general wear and tear. Regular maintenance and proper use can extend the life of your garbage disposal.
How much does it typically cost to replace a garbage disposal?
The cost of replacing a garbage disposal varies depending on the unit’s cost, labor costs (if hiring a plumber), and any additional materials needed. Generally, expect to pay between $100 and $500, but this can vary significantly.
Final Thoughts
Replacing a garbage disposal might seem daunting, but with a methodical approach and the right tools, it’s a manageable DIY project. Remember to prioritize safety by turning off power and water before starting. By following these steps, you’ll not only save money but also gain valuable experience in home maintenance. Don’t hesitate to tackle this home repair! The satisfaction of a job well done—and a smoothly functioning kitchen—is worth the effort.