Waste King 9940 Review

by Paul

A proper garbage disposal hides under your sink and cleans all the food waste that you put inside it while cooking or cleaning. A good disposal will not get jammed or grind slowly or make hard noise during operation. Waste King 9940 is one of those disposals which I’ll call a good disposal.

No matter if you love to cook a lot or just have a big family that can produce lots of food waste, a garbage disposal is always a good option. It makes your life much easier if cleanliness is a must in your kitchen.

If you do not want to have bad food waste smell running over the air garbage disposal is the appliance you need right now. A disposal makes your kitchen healthier by cleaning food waste instantly. No fear of bacteria and other insects from a rotten waste.

These are the reasons why you must have a garbage disposal in your kitchen. There are several models of disposals in the market. One of those powerful disposals is Waste King L-9940.

Features of the Waste King 9940

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3/4 HP


2700 RPM


9.5 Lbs


8 x 8 x 13.5

Feed Type


Grind Material

Stainless Steel

Septic Safe?



8 year limited

Waste Kings disposals always provides value for money. You should never expect to have a fancy looking product that comes with good look from a brand like Waste King. They provide extremely competitive price range for each of their disposals. Along with that, you get a solid product that operates good enough to be one of the best sellers in the market.

If you do not have a high budget to buy a garbage disposal, you should consider buying a Waste King. If you want both the good price and great service from the disposal unit, you should go for a high-end product of Waste King.

These disposals will not cost you as much as the other garbage disposal brands, but will provide the same operation. Yes, few features may be different that you could find in any disposals of Insinkerator, but the actual function is quite similar.

Power & Speed

Waste King 9940 is a continuous feed garbage disposal, contains a ¾ HP motor with 2700 RPM speed. It is one of those disposal that are capable of disposing hard and a good amount of food waste in a very small amount of time.

The powerful disposal can easily serve a family with more than 5 people. Besides that, it is very useful for those who love to cook for their friends and family. Because, if you put a good amount of waste at a time, it can easily shred it to small pieces and dispose them through the drain line.

3-Bolt Mounting System

The major difference between other models of Waste King and Waste King 9940 is the mounting system. Most of the new garbage disposals of Waste King come with EZ mounting system. This one contains the classic 3-Bolt mounting system. Waste King’s old disposals used to have this 3-bolt mounting system. So, if you need to replace an old waste king with the 9940, it is a good option for you.

I personally think the new EZ mounting system is a better option for anyone who wants to install the disposal on their own. Because it's easy to remove it later and reinstall. But there are users who say that they are more comfortable with the old 3-bolt mounting system.

Most of the plumbers have worked with 3-bolt mount for ages. No matter if you call a plumber or install this unit by yourself, all the instructions and necessary tools come with a new Waste King 9940 disposal.

Installation Information

Installation Type

3-Bolt Mount




6 Amps

Max Sink Thickness

1/2 inch

Dishwasher Hose Size

7/8 Inch

Drain Connection Size

1-1/2 Inch Drainpipe

Cord Included


Cord Length

32 Inches

Noise Expectations

The noise produced while working with a waste king 9940 is tolerable compared to other garbage disposals that are quiter. It is not extremely loud, neither super silent. Most of the users say the noise level is tolerable. 

Many also says that it is quieter compared to the Insinkerator badger 5. So, spending this much for a powerful disposal like this, I would compromise even if it would sound louder than it usually works.

Price Guide for Buyers

The pricing of waste king 9940 is also competitive like most of the garbage disposals on the market.

You will get same ranged disposals like Waste King L-3300, or the 3200 from waste king with same level of power. But both of those disposals come with EZ mounting system. Beside that 9930 is also available with ¾ HP motor, but it is slightly smaller and lighter version of the 9940. So, the price is also less than Waste King 9940 model.

You can choose any of these four products depending on your budget and depending what type of mounting you will be more comfortable to install.

Value for Money

This disposal gives you value for money. Usually the branded disposals that comes with ¾ HP motor price between $180 to $230.

The Waste king will cost much less than all those disposals in market. Not only you get a cheap purchase, you also get a quality product that is able to efficiently work and last for a long time.

Durability & Warranty

If you correctly use a Waste King it will last more than 15 years. I’m saying this from experience. Though no one can guarantee about how much time it will properly work.

The 8 years in-home warranty is a great deal to get with this disposal. Beside that you get a lifelong corrosion guarantee with Waste King 9940 disposal.

No Removable Splash Guard

Unlike most of the new disposal models of Waste King, it does not come with a removable splash guard. There are complaints from new users about slow drainage of water by the small sink flange of Waste King 9940 disposal.

If you think the water is draining slowly just take a knife and cut the edges a bit of the rubber flange. If the drainage doesn’t bother you much wait for a few days. The rubber will ultimately get saggy after few days of use and let the water drain properly.


  • Value for money purchase
  • Power cord included
  • Long term warranty
  • Good space in grinding chamber
  • Good option for heavy use
  • Noise level is very low
  • Easy to install


  • No removable splash guard included
  • Rubber flange may cause drain water slowly


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Waste King Legend Series 3/4 HP Disposal is a good option for those households who needs a heavy usage of a garbage disposal.

If you are looking for a powerful disposal, with a good warranty that can easily fit into your budget, I’d suggest to have this ¾ HP Waste King 9440 Disposal.