Waste King A1SPC Knight 1.0 Garbage Disposal Review 2019

I like the idea of things being ‘bullet-proof’. In other words, something so strong that nothing can go wrong. So when my wife and I were out shopping for a new garbage disposal, and I saw the words “Full Armour Plating” I was instantly hooked. Luckily for me, and my wife, the slogan referred to the Waste King A1SPC Knight 1.0 Horsepower Garbage Disposal.

This Waste King Knight is indeed a steel-clad warrior of a garbage disposal unit. Its powerful one horsepower motor drives grinders that pulverize some of the toughest food waste in one go, with no-fuss and no noise.

Bigger is Better

My wife and I were looking to buy a garbage disposal to replace our old one. Although there are only two of us in the house, we do a lot of entertaining, and our current ½ horse power garbage disposal just didn’t cut the mustard (or the food waste!) anymore. “What size garbage disposal do we need?” my wife asked. ‘’Big!’’ was my reply. Upgrading to the Waste Knight’s 1 HP motor has proved ideal for us.

The motor spins at 2700 revs per minute (rpm), at which speed food waste is mashed up in seconds. It is a permanent magnet motor which means, without getting too technical, it is more efficient than a regular motor. It also reaches its top speed and slows down much faster. Ideal for use in a garbage disposal unit.

Waste King claim the Knight offers more power per pound than compared to the best garbage disposals of the same size.

Once is Enough

What makes the Waste King Knight truly exceptional is the pairing of its 1HP motor with its “one pass” grinding system. The stainless steel grinders do all the pulverizing just one stage. Many other top rated garbage disposals use multi-stage, usually one to three steps, grinding. With the Knight, as soon as you stuff in the food waste, it’s instantaneously pulped.

The continuous feed means you can just keep adding waste with the motor running. This is perfect for keeping the kitchen tidy if you are preparing meals for a lot of guests.

You just grind as you peel. Likewise, at the end of a dinner party, clearing up is just a matter of simply scraping clean the plates into the running Waste King Knight. No fuss and plenty of time to enjoy the post-dinner conversation.

That’s not to say you can just cram in food waste non-stop, willy-nilly. The motor and grinders do have limitations. The Waste King Knight will grind the toughest of waste, but just don’t put too many bones or hard rinds in at the same time.

Fewer Jams

Another benefit of the Waste King A1SPC Knight 1.0 horsepower garbage disposal’s one pass grinding system is you are less likely to get jams. Since there is only one stage, the grinding needs fewer the moving parts compared to multi-stage grinders. The fewer the number of moving parts, the fewer the bits for food waste to get stuck in.

Added to this, the Knight’s impellers – the bits that pulverise the waste by forcing it against the grind ring – swivel. This swivelling motion also helps to reduce the likelihood of any debris clogging up the disposal unit.

No Clanking

Now, I like a little bit of noise with my machinery. The clanging of the armour plate reassures me it is working just fine. My wife, however, is a fan of silence. Since she is the one who spends most of the time in the kitchen, a quiet garbage waste disposal was a must. Once again the Waste King A1SPC Knight 1.0 Horsepower Garbage Disposal fit the bill.

The unit uses what Waste King calls “Exclusive Silencer Technology“. Basically, the Knight employs the same material used to soundproof music studios. All of the unit’s stainless steel parts are insulated with this material. In addition, the Knight’s grinding chamber is made of glass-filled nylon. The result of both of these measures is the Waste King Knight is very quiet when it is running.

You can talk without raising your voice while the powerful motor and grinders quietly get rid of your leftovers.

Most of the newest best home garbage disposals now use the latest sound reducing technology similar to the Waste King Knight. As a result, the newer large horsepower models are generally quieter than smaller older models. The Knight is no exception and scores highly for quietness in garbage disposal ratings of units with one or more horsepower.

Quick Fit

As well as being a fan of sturdy machines, I like to think I know how to make them work. Once our shiny new Waste King Knight arrived, however, I face the tricky problem of just how to replace a garbage disposal? I looked at our old unit, looked at our new Knight and scratched my head.

My wife handed me the instruction booklet, and I was saved!

It turns out the Waste King Knight is one of the easiest garbage disposals to install thanks to its “Snap and Lock” mounting system. The instructions are easy to read and simple to follow, and it took me no more than a few minutes to remove our existing garbage disposal and fit the new Knight. It was, as the mounting system name suggests, just a question of snapping the unit onto the sink’s outlet hole and then locking it in place. A 36-inch power cord comes with the unit, so it was then just a simple matter of plugging it in. Hey, presto job done!

The Knight’s snap and lock mounting system can be used with most existing waste disposal units, and the 36-inch power cord is long enough to reach under most sinks. Although not overly large, the Knights measures almost 9 x 9 x 15 inches, so it is worth checking first if it will fit under your sink.

The Waste King Knight is designed to fit most home’s septic system, and it works perfectly with our decent sized tank.

No Corrosion

The Knight is designed to minimize the amount of corrosion you will get from a machine that is almost constantly wet. The glass filled nylon material used in the grinding chamber should guarantee no rust and little wear and tear. Likewise, the stainless steel used for the grinding parts and most of the rest of unit should keep rust to a minimum. If you do get some corrosion you can always fall back on the warranty which includes a lifetime guarantee against rust.

Lifetime In-Home Service Warranty

The Waste King A1SPC Knight 1.0 Horsepower Garbage Disposal comes with the same lifetime warranty that most of the brand’s latest models have. As well as covering all replacement parts and labour, the warranty means that if your disposal develops a material or mechanical defect within the lifetime of the original purchaser, it will be replaced in your home — free of charge.

However, be careful not to accidently stuff a knife or other bit of cutlery into the waste disposal unit. This type of damage is unlikely to be covered by the warranty.

The disposer is also backed by a lifetime warranty against corrosion.

What’s in the Box

The Waste King Knight comes with all the bits you need to get it up and to run. Along with the 1.0-horsepower unit, there is the Snap and Lock Mounting System, a drain elbow, and a 36-inch power cord.

Pros and Cons of InSinkErator Evolution Essential 3/4 HP


  • Powerful and efficient one horse power motor
  • One pass grinding pulverises waste quickly
  • Silencer Technology makes it very quiet when in use
  • Continuous-feed makes it easy to use
  • Snap and Lock mounting system offers easy installation
  • Lifetime warranty on mechanical and material parts including home repair


  • Can be a bit pricey for some budgets
  • The rubber food guard around the sinkhole is not removable
  • The unit can prove difficult to clean

Conclusion: Why You Should Buy This Product

My wife and I went shopping to buy a garbage disposal that could handle the food waste from big dinner parties yet would be quiet enough when you are cooking for just two. I believe we found the perfect answer to the question ‘what is the best garbage disposal?’ l in the Waste King A1SPC Knight 1.0 Horsepower Garbage Disposal.

It’s quiet, grinds hard and fast to get rid of waste many other models can’t cope with and comes with a lifetime warranty. It also has a simple Snap and Lock mounting system for easy installation, stainless steel grinding components and a corrosion-proof grinding chamber.

All this and it is armor-clad with beautiful shiny stainless steel. What’s not to like about this ‘bullet-proof’ unit? For the price, I think it is one of the best home garbage disposals you can buy.

Review of Waste King A1SPC
  • Motor Power
  • Noise Level
  • Price
  • Grind Technology


Hope this review has cleared your confusions. So, what are you waiting for? If you love this product then you should go for it.

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