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How Does a Garbage Disposal Work
July 20, 2024
-
By
Ethan Clarke
How does a garbage disposal work? What allows it to grind up food scraps in the sink? For the answers, be sure to read on. In this post, we’ll take a look at its main components and how they work together to handle food scraps efficiently.
Understanding Garbage Disposals
Garbage disposals collect solid food debris in a grinding chamber and grind them into tiny bits, making it easier for your plumbing system to handle. Believe it or not, this fantastic piece of technology has been around since 1927, when it was invented by John Hammes. Today, garbage disposals are seen as an integral part of modern kitchens and are often used to quickly remove food waste.
Parts of a Garbage Disposal
At first glance, a garbage disposal might seem like a simple machine, but it’s actually a complex system that consists of various parts, all of which work together in harmony. These parts include include:
- A shredder ring
- A flywheel
- Upper and lower chambers
- Impellers
Hopper Chambers
Hopper chambers are composed of an upper and lower chamber, both of which are responsible for holding and processing food waste. Take the upper chamber, for example, it acts as a holding area before the food waste gets processed.
The lower chamber, on the other hand, is home to the motor that fuels the grinding mechanism. This motor is the heart of the garbage disposal, enabling the chopping up of food scraps into tiny bits.
Shredder Ring and Flywheel
The ring is lined with sharp impellers that allow it to pulverize food scraps into small particles. The spinning flywheel is another essential component; it works hand-in-hand with the shredder ring to break down food debris efficiently.
The food bits are then washed through holes in the chamber wall, thanks to the shredder ring and flywheel. This process makes it easier for the pulverized scraps to be flushed out through the pipes.
Impellers and Grinding Chamber
Contrary to popular belief, garbage disposals aren’t equipped with sharp blades. Rather, they use blunt impellers to grind food waste.
These impellers have several functions:
- They push food particles against the shredder ring inside the grinding chamber, aiding in the grinding process
- They help to break down food waste into smaller particles
- They ensure that food waste is ground into tiny particles
Waste Line and Drain Pipe
Once the food waste has been ground into tiny particles, it can exit the garbage disposal. This is where the drainage pipe come into play. The waste line connects the garbage disposal unit to your home’s plumbing system, and allows the waste material to be carried away efficiently.
Proper Use and Maintenance Tips
A well-maintained garbage disposal has a lifespan of 10 to 12 years. Here are a few tips to keep your unit operating smoothly.
Cleaning Your Unit Regularly
We recommend using ACTIVE Garbage Disposal Cleaner Tablets once a month to clean and deodorize your unit.
Step 1: Run Hot Water
Turn on the faucet and run hot water for one minute.
Step 2: Add an ACTIVE Tablet
Reduce the water to a slow trickle, turn the faucet away from the drain, and place one ACTIVE Garbage Disposal Cleaner tablet inside the drain.
Step 3: Run the Disposal
Run the garbage disposal until all of the foam drains, then turn off the disposal.
Supply:
- ACTIVE Garbage Disposal Cleaner Tablets
While it can be tempting to use harsh cleaning chemicals, it’s best to avoid them as they can wear down both the disposal and the drain line.
ACTIVE Disposal Cleaner
Cleaning your disposal regularly helps maintain performance and prevent issues.
Fixing Jams and Clogs
Jams are a common issue and are typically caused by obstructions in the unit. But don’t worry, they can usually be fixed easily.
Supplies:
- Tongs
- Flashlight
- Garbage disposal wrench (optional)
Step 1:
Turn off the power by flipping the garbage disposal switch on the circuit breaker.
Step 2:
Shine a flashlight into the drain to locate the blockage then remove it using a pair of pliers or tongs.
Step 3:
If necessary, use a garbage disposal wrench to manually spin the blades; that will help remove any clogs.
Always run cold tap water for 20 to 30 seconds before and after grinding food waste; that will help flush out the scraps and prevent jamming.
What Not to Put in Your Garbage Disposal
While they’re powerful, garbage disposals are not equipped to handle all types of scraps. To ensure its longevity, you want to avoid putting certain food items in the drain.
For example, fibrous foods like celery, onion skins, and artichokes should be avoided as their fibers can cause blockages. Similarly, avoid hard items like bones and fruit pits as they can damage the appliance. Uncooked pasta and rice can also expand with water and cause clogs.
Choosing the Right Garbage Disposal for Your Home
There are several factors to consider when choosing garbage disposers, including the type of model, motor size, and power.
Batch Feed vs. Continuous Feed Models
When selecting a garbage disposal, there are two types of disposal models to decide between: continuous feed and batch feed models.
Batch feed models are capable of handling more food scraps at once and are safer for households with curious kids or pets. They also have better-insulated motors, offer quieter operation, and more effective grinding.
Continuous feed disposals, on the other hand, allow food to be added while the unit is running and require cool water to prevent jamming. These models are popular due to their convenience.
Motor Size and Power
Both motor size and power affect the grind quality and performance of the unit. Basic models with 1/3 to 1/2 horsepower are capable of managing everyday food waste, while higher horsepower models typically offer quieter operation and are less prone to jamming.
For large households, a 1 HP or higher garbage disposal is recommended for heavy-duty grinding tasks. On the other hand, a 1/3 HP garbage disposal is generally suitable for small households with light-duty disposal needs.
Installing a Garbage Disposal
With the right tools, you can install a garbage disposal in less than three hours.
Supplies:
- Hammer
- Screwdriver
- Mounting assembly
- Plumber’s putty
- Clamps
Step 1:
Seal the sink opening with plumber’s putty, then place the disposal sink flange into the sink and press firmly to secure it in place.
Then tighten the mounting assembly with mounting screws.
Step 2:
Attach the power cord to the bottom of the garbage disposal. To do that, you’ll need to remove the electrical cover plate.
Step 3:
Align the garbage disposal to the sink and mount it in place with the assembly. Connect the drain lines afterwards, securing the hose with clamps.
Remember to check for leaks before powering the garbage disposal on.
Environmental Impact of Garbage Disposals
Garbage disposals not only reduce landfill waste but also allow kitchens to stay fresh between trash days. However, they also have some drawbacks.
For one thing, they require two to five gallons of water per use. Not only that but the wastewater generated also has environmental repercussions.
In fact, older wastewater treatment plants may struggle with the additional solid material from garbage disposals. If you have a septic system, using a garbage disposal can also increase the amount of waste and water in the tank.
Understanding How Garbage Disposals Work
In this post, we’ve covered everything from the mechanics of these appliances to their environmental impact.
Remember, a well-maintained garbage disposal will not only help manage kitchen waste but will also reduce the amount of waste that enters landfills. So, the next time you flip that electrical switch, you’ll know exactly what’s happening under your sink!
Key Takeaways
- Garbage disposals consist of a shredder ring, flywheel, and impeller, all of which work together to pulverize food debris
- Proper operation and maintenance, such as using cold water during use and avoiding certain foods, can extend the disposal’s lifespan and prevent common issues
- Choosing the right disposal model depends on factors like motor size, feed type, and household needs
Frequently Asked Questions
How does a garbage disposal work?
A garbage disposal works by grinding food waste into tiny bits that can easily pass through the plumbing system.
What care practices should I follow for my garbage disposal?
We recommend cleaning your unit with ACTIVE Garbage Disposal Cleaner tablets once a month. You also want to avoid using harsh chemicals. Also, make sure there are no foreign objects inside before turning it on.
What shouldn’t I put in my garbage disposal?
You shouldn’t put fibrous foods, grease, hard objects, and expandable foods like pasta and rice in your garbage disposal. These items can damage the disposal and clog the pipes.
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Ethan Clarke
Ethan Clarke is a seasoned expert in appliances and household waste systems. Referencing his extensive experience as an appliance repairman, Ethan shares his invaluable knowledge through detailed maintenance & troubleshooting manuals. Ethan’s insights help homeowners understand and maintain their appliances efficiently, ensuring longevity and optimal performance. He’s here to provide practical, easy-to-follow advice for all your appliance needs.
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