Waste King 9940 3/4 hP Garbage Disposal Review: Quiet Power Meets Durability
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Waste King 9940 3/4 hP Garbage Disposal Review: Quiet Power Meets Durability

When it comes to garbage disposals, Waste King is a brand that has built a solid reputation over the years for delivering durable and efficient products. Known for their commitment to quality and innovation, Waste King offers a range of disposals designed to meet various household needs.

Among their lineup, the Waste King 9940 Legend Series stands out as a high-performance 3/4 horsepower garbage disposal that promises power, quiet operation, and long-lasting reliability. In this review, we’ll dive into the many features of this model to help you decide if it’s the right fit for your kitchen.

Waste King 9940 3/4 HP Garbage Disposal
  • Powerful Motor: High-speed 3/4 HP, 2700 RPM (115V) motor is sound-insulated and jam-resistant.
  • Easy To Install: Quick and easy kitchen sink setup with professional 3-bolt mount.
  • Build Quality: Durable, compact, and lightweight with stainless steel grind components.
  • Continuous Feed: grinds food waste continuously.
  • Warranty: Includes 8-year limited warranty and supports dishwasher hookup.

Waste King 9940, 3/4 HP Garbage Disposal key Features

Powerful High-Speed Motor

The Waste King 9940 is equipped with a robust 3/4 horsepower permanent magnet motor that operates at an impressive 2700 revolutions per minute (RPM). This fast-spinning motor delivers powerful grinding performance, allowing the disposal to break down food waste quickly and efficiently. Thanks to this high speed, it can easily handle tougher scraps such as fruit cores, small bones, and fibrous vegetable peels without struggling or causing blockages.

Ultra-Quiet Operation

One of the standout benefits of the Waste King 9940 is its exceptionally quiet operation. The unit is designed with built-in sound insulation technology integrated into its housing, significantly reducing the noise often associated with garbage disposals. Whether you’re running it during a busy meal prep or cleaning up after dinner, the 9940 operates at a whisper compared to many other models on the market.

 Durable Stainless Steel Components

Durability is at the core of the Waste King 9940’s design, and all the critical grinding components are made from corrosion-resistant stainless steel. Using stainless steel ensures that the blades and grinding elements stay sharp and rust-free even after years of regular use. This robust material not only enhances the longevity of the disposal but also promotes smooth and consistent performance every time you run it.

Continuous Feed System

The Waste King 9940 features a continuous feed system, which means you can keep adding food waste into the disposal without needing to stop and restart the motor each time. This feature vastly improves convenience during kitchen cleanup, allowing you to grind leftovers continuously. It’s especially helpful during large meal preparations or after hosting gatherings, where the volume of scraps can be high.

Easy, Secure Installation

Installing the Waste King 9940 is designed to be straightforward and hassle-free thanks to its professional-grade 3-bolt mounting system. This mounting mechanism ensures a tight and secure fit on most standard kitchen sinks, which not only simplifies the installation but also guarantees long-term stability without leaks or wobbling.

Pre-Installed Power Cord

Forget the frustration of attaching a power cord or hiring an electrician to wire your new garbage disposal. The Waste King 9940 comes with a pre-installed power cord that’s ready to plug into any standard household outlet. This feature significantly simplifies the setup process and makes the unit accessible to beginners and experienced installers alike.

8-Year Limited Warranty

Waste King backs the 9940 model with an excellent 8-year limited warranty, reflecting their high confidence in the durability and quality of this product. This extended warranty coverage offers peace of mind, knowing that if any defects or issues arise within that time frame, you’ll be supported by the manufacturer.

Dishwasher & Septic System Compatible

The Waste King 9940 is designed with versatility in mind. Not only is it compatible with most dishwasher systems—allowing you to connect the dishwasher drain hose directly to the disposal for seamless waste handling—but it’s also safe for use with properly sized septic tanks. The disposal’s efficient grinding technology breaks down food waste finely enough to reduce the load on septic systems, helping maintain their health when used responsibly.

Waste King 9940, 3/4 HP Garbage Disposal Specifications

Specification Details
Model Waste King 9940
Motor Power 3/4 Horsepower
Motor Speed 2700 RPM
Voltage 115 Volts
Motor Type Permanent Magnet Motor
Feed Type Continuous Feed (Wall Switch Activated)
Mounting Assembly Professional 3-Bolt Mount
Noise Insulation Yes (Sound Insulated Housing)
Grinding Components All Stainless Steel
Dishwasher Hookup Yes
Power Cord Pre-installed (No Electrical Work Needed)
Item Dimensions 8 x 8 x 13.5 inches
Item Weight 9.5 pounds
Material Steel
Included Components Garbage Disposal
Batteries Required No
Warranty 8-Year Limited Warranty

Performance and Benefits

Performance-wise, the Waste King 9940 handles kitchen scraps with impressive speed and efficiency. The powerful 3/4 HP motor delivers enough torque to grind through tougher food scraps such as vegetable peels, small bones, and fruit cores without bogging down. The stainless steel grinding system is designed not only for power but also to prevent jams with swivel impellers that help keep the grinding chamber clear during operation. This combination leads to less frequent interruptions and a more reliable disposal experience.

One of the standout benefits of the 9940 is its quiet operation. Many garbage disposals can be loud and disruptive, but the sound-insulated design of this model helps to minimize noise, making it ideal for homes where a peaceful environment is valued. The corrosion-resistant grinding chamber also adds to its appeal—they’re designed to endure daily use without degrading or failing, which makes the 9940 a cost-effective choice over time.

Waste King 9940 Pros and Cons

Pros

  • Delivers powerful grinding with a strong 3/4 HP motor running at 2700 RPM, making quick work of kitchen waste
  • Quiet operation thanks to built-in sound insulation, reducing kitchen noise significantly
  • Made with durable stainless steel grinding components that resist rust and corrosion for a longer lifespan
  • Easy installation with a professional 3-bolt mounting system and a pre-installed power cord to plug and play
  • Dishwasher inlet port included for convenient hookup
  • Long 8-year limited warranty offers peace of mind and shows confidence in product durability

Cons

  • Requires adequate space under the sink due to its size, which might be a consideration for kitchens with limited cabinet clearance

Waste King 9940 vs Top Competitors

Feature Waste King 9940 InSinkErator Evolution Ultra Quiet (1 HP) Waste King L-111 (1/3 HP) Moen Stainless Steel Septic-Safe
Motor Power 3/4 HP permanent magnet motor, 2700 RPM 1.0 HP motor 1/3 HP motor, 1900 RPM Approx. 3/4 HP, Septic-safe motor
Noise Level Quiet operation with sound-insulated housing Very quiet with SoundSeal technology Moderate noise (~96 dBA) Quiet operation with SoundSHIELD technology
Grinding Components Rust-free stainless steel Stainless steel grinding components Plastic body and nylon sink flange Stainless steel, corrosion-resistant components
Feed Type Continuous feed Continuous feed Continuous feed Continuous feed
Installation Professional 3-bolt mounting system; pre-installed power cord Easy installation, mounting system included Twist-lock, rubber gasket, prewired 3-bolt mounting system; built-in dishwasher hookup
Warranty 8-year limited warranty; lifetime corrosion warranty 7-year warranty 2-year warranty Not specified; known for reliability
Septic System Compatibility Safe for properly sized septic tanks Septic system compatible Not clearly specified Designed for septic systems
Special Features High speed 2700 RPM; powerful continuous motor; sound insulation LeakGuard liner; multi-grind technology Budget-friendly; compact design SoundSHIELD for noise reduction; septic-safe design
Price Range Mid-range, reasonable investment for performance Higher price; premium option Budget-friendly Mid-range suitable for septic systems

Customer Feedback and Ratings

Customer reviews and feedback provide valuable insight into how the Waste King 9940 performs in real-world settings. Many users praise the disposal for striking a good balance between power and quietness. Several reviewers highlight how the unit quickly grinds waste without any noticeable loud noise, which can be a significant factor for families or anyone with an open kitchen layout.

Installation has also garnered positive comments. Many buyers mention how the pre-installed power cord and the mounting system made it easier to replace older units without professional assistance, saving time and money. The durability of the stainless steel grinding components consistently catches positive remarks, with users noting that even after months or years of use, the disposal maintains solid performance.

The 8-year limited warranty is another frequently noted benefit, providing customers with confidence that Waste King stands behind their product. Overall, the Waste King 9940 enjoys a strong average rating, typically around 4.4 out of 5 stars across multiple retail platforms like Amazon, Home Depot, and Lowe’s, reflecting general customer satisfaction.

Conclusion

Overall, the Waste King 9940 3/4 HP garbage disposal is a strong contender if you’re in the market for a unit that delivers both power and quiet performance. Its high-speed motor efficiently handles tough food waste, while the sound insulation makes for a much quieter kitchen experience compared to many alternatives.

Durability is a hallmark of this disposal, thanks to its corrosion-resistant stainless steel components, and the included 8-year warranty gives buyers confidence that they’re making a reliable investment. The installation process is made easier by the professional mounting system and ready-to-use power cord, making it suitable for homeowners who want to replace or upgrade their disposal without a complicated setup.



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