Waste King 9940 Legend Series 3/4 HP Disposal Review

 May 28, 2012 | Categories: ,

Waste King 9940 buyWaste King 9940 Legend Series 3/4 HP Disposal Review

It doesn’t matter whether you’re an avid cook or someone who enjoys an occasional home cooked meal, you can truly find the convenience of a garbage disposal whether you use it a few times a day or once a week. For those of you who cook on a regular basis, a garbage disposal that offers at least ¾ horsepower will ensure that you can effectively and efficiently grind up food waste into tiny particles that won’t clog your drain or cause issues in your plumbing.

Waste King offers a high-end line of garbage disposals known as the Legend series. The Waste King 9940 is the ¾ HP model that makes the perfect addition to a kitchen that resides in a household of chefs. Potato peels, fruit rinds, nuts, corncobs, and bones will be no problem if you own the WK Legend 9940.

Motor Power & Performance

Garbage disposals come in a variety of Horsepower and RMP ranges from ¼ HP to 1+ HP. For families that enjoy cooking a lot and find themselves using their food waste disposers on a regular basis, a unit that features a ¾ HP motor or higher is going to be the best option. The Waste King Legend 9940 has a ¾ HP permanent magnet motor perfect for such households. It also delivers 2,800 RPM, which is at the high end of power for garbage disposals of this class. You’ll be able to chew through tough food quickly and easily.

Feed Type

This garbage disposal has continuous feed operation which means you can keep adding all of your food waste while the unit is running until you have disposed of everything. This is a lot quicker and much more convenient than batch feed models which offer the highest level of safety but a longer and more strenuous process.

Materials & Components

For those individuals who expect durability from their kitchen appliances, the Waste King 9940 features stainless steel grinding components and a rust and corrosion resistant chamber and design.  Waste King products are known to last for years and years, so when you purchase a WK garbage disposal you are investing into a product that will be around for a long time.


When you deal with high-end garbage disposal units, the noise the unit gives off while in use is much more like a low hum opposed to rocks in a blender. The Waste King Legend 9940 is no exception since the Legend series is Waste King’s high-end garbage disposal line. Superbly quiet and a relief to ears who had to listen to noisy, annoying blender-like garbage disposals in the past.


Installation is a breeze and can be down by a homeowner without much knowledge of plumbing and electrical work. The instructions are easy to follow and easily understandable. The unit works with a 3 bolt mounting system so only takes a short time to install properly. It’s not as easy as the EZ Mount units that Waste King also offers, but will work fine if you are replacing an older unit since most older units used the 3 bolt mount system anyway.

It is also safe with properly-sized septic tanks which will come as a relief since many units are discouraged for use in conjunction with a septic system.

Dimensions & Capacity

The Waste King 9940 is 13 5/8” H x 8 5/8” W x 8 5/8” D so it’s pretty standard compared to the competition. It will still fit nicely in cabinetry without taking up all of the space.


If you are looking for a very efficient ¾ HP garbage disposal, the Waste King Legend 9940 is an excellent option. Its high power permanent magnet motor and stainless steel components will ensure that you own a high quality, reliable product. Most individuals don’t realize the convenience and importance of a garbage disposal until theirs breaks down, so you’ll be glad you own a product that will last for years to come. Here are the features and specs for this particular model.

Horsepower:                                     3/4 HP

Motor:                                                  2,700 RPM

Power Cord:                                       36 inch Power Cord included

Feed:                                                    Continuous Feed

Operation Requirements:                 115 volts, 60 Hertz, and 7.0 current-amps

Septic System Safe:                      Yes

Warranty:                                            8 year in-home service warranty (non-transferrable)

The higher horsepower you have featured in the garbage disposal, the less you will have to deal with jamming and clogging. ¾ HP and 1 HP food disposer models are for heavy-duty use and can be used on a regular basis with no problem. The permanent magnet motor also decreases the time needed to grind the food waste into tiny particles, which means it’s more efficient and economical.

With the 36” included power cord, you will not have to worry about fiddling with wiring to get your disposal hooked up. The 3 bolt mount system allows for installation by the home owner without much knowledge about plumbing or electrical work needed, which is great for people who like to do installation projects on their own instead of outsourcing it to an expensive professional.

Waste King offers some of the best warranties in the business, and this product is no exception. You will get an 8 year warranty that includes in-home service should something happen to the product within 8 years of the purchase date.

What’s Included

Inside the box you will find the Waste King Legend 9940 unit, the mounting hardware, and the power cord.

Optional Accessories

The Waste King 1025 Sink Stopper & Splash Guard, and the stainless steel Waste King 3140 3-Bolt Extended 3-Bolt Mount Sink Flange are both optional accessories you can purchase to increase the utility of your Waste King Legend 9940 garbage disposal.


People are constantly impressed with Waste King products and the Legend 9940 does not disappoint. It works like a charm, in literally seconds, and has a quiet sound even when grinding things like popcorn kernels and nuts.

It is also a great value for a disposal of its class. It has a high HP motor and offers a large amount of RPM, but still rings in at an incredible price. The warranty is another plus since the homeowner can be assured that WK is dedicated to producing quality products.

Installation is a breeze and switching out an old 3 bolt mounted garbage disposal can be done quickly and easily so you will not need to spend extra money on hiring a professional. The quality materials will also ensure that the unit will be around for years to come so you will not have to worry about replacing the unit every 2-4 years like some InSinkErator models are known to do.


The largest problem a few people had with this particular model is the rubber drain cover. When you first install the unit, the rubber drain cover is very stiff so it can cause slow drainage, and you will need to push the food through the drain cover, it will not fall through on its own. As the days go on, the rubber will relax and this will no longer be a problem. It may be an annoyance for some homeowners so it was worth noting.

Consumer Reviews

Customers seem to really enjoy the Waste King Legend 9940 garbage disposal. It has scored very well among owners and almost everyone commented on how quiet and effective it is at grinding food extremely quickly. Some owners were in disbelief at how fast it worked and even had to check in the chamber to make sure all the food waste had disappeared.

There is plenty of feedback available on Amazon, so if you are still wondering if the Waste King Legend 9940 is the right choice for you, check out more reviews here


For such a high-end unit, the Waste King 9940 is extremely well-priced compared to other ¾ HP garbage disposal units.

If you’d like to check what the Waste King 9940 is priced at today, check here

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