I am sure we have all heard that having a garbage disposal and a septic system is a bad idea and most of the time that is true. I have heard horror stories of people installing garbage disposals, and a couple of months later, their septic systems start overflowing because the food waste does not properly decompose or does not decompose as quickly. Luckily, there is a solution, and that solution is the InSinkErator Evolution Excel Garbage Disposal. This disposal is great for anyone that has a septic system, but there are other reasons to use it too.

All in all, this is a very good system, and definitely worth a buy for anyone looking for new garbage disposal. But you do not have to take my word for it! I will give you some reasons why you should definitely pick this one up and why we included it in our best garbage disposal list.

InSinkErator Evolution Excel Features, Pros, Cons, Compare

Top Features

Septic Systems Love It

I already mentioned this in the introduction, but it is worth mentioning again. The InSinkErator Evolution Excel Garbage Disposal is a great option for any homeowner that wants garbage disposal but also has a septic system. That is because the InSinkErator Evolution Excel does extra work and includes additional functions to break down food waste that would take up space in a septic system.

If you have a septic system, these extra functions are imperative. Otherwise, you will find your septic system overflowing really quickly – and that can be a very costly mishap.

It is Quiet

Garbage disposals can be obnoxious. Nothing is worse when you are cleaning up after a nice dinner party than hearing the terrible roar of garbage disposal. Luckily, this garbage disposal has technology in it that keeps this noise at bay.

First, it has technology that keeps the garbage disposal from producing vibrations that would shake everything around it, and the shaking over other nearby connections, pipes, and counters is really what creates most of the noise from regular garbage disposal systems.

Easy to Install

This is an important feature for a lot of people that might not have a lot of plumbing experience. The InSinkErator Evolution Excel is very easy to install, and it should take less than an hour. This is because you do not have to refit anything to connect it to your system. The only reason why the installation of this machine would take extra time would be if you are replacing it with another system that would require refitting.

Multi-grinding layers

You will not have to worry about the unit being able to grind down any garbage you might need to dispose of. That is because the InSinkErator Evolution Excel has multiple layers of grinding technology that will make sure that whatever is put into it is torn up appropriately.

There is a reason this type of garbage disposal is called the InSinkErator, and the InSinkErator Evolution Excel is just as effective at its job as other garbage disposals in the InSinkErator series.


  • Good for septic systems
  • Very Quiet
  • Anti-vibration technology
  • Does not require refitting
  • Easy to install
  • Easy to follow instructions
  • Multi-griding layers
  • Effectively disposes of any waste


  • More expensive than other garbage disposals with fewer functions
  • Sometimes too quiet; hard to tell if it is on


  • Anti-vibration technology
  • Multi-grinding layers
  • Bio-charge injection technology cartridge
  • Quick Lock sink mount
  • 1 Horsepower motor
  • 7 year limited warranty
  • 40 oz capacity chamber

InSinkErator Evolution Excel 1 HP

Sunny Jewel

Value for Money
Easy to Install

Review Summary

In this category, InSinkErator Evolution Excel is the best one I have ever reviewed. Design, performance, noise level, durability is up to the mark. Little pricey, but still worth the money. I believe you will never regret it if you buy it. Durability, Quietness, Septic Safe, Warranty based one everything this garbage disposal is an overall winner. So without any hesitation go for it.


InSinkErator Evolution Excel 1HP Installation


Download PDF Manual

Frequently Asked Questions:

Are there other comparable systems like InSinkErator Evolution Excel for people with septic systems?

No, this is the best system for people with septic systems. Using other garbage disposals runs the risk of overflowing their septic systems.

What does the Bio-Charge cartridge do in the InSinkErator Evolution Excel?

The Bio-Charge cartridge adds a mixture of enzymes and chemicals into the waste every time that the InSinkErator Evolution Excel is turned on. This breaks down the waste further so that it can decompose properly and keep your septic system from overflowing.

Is the InSinkErator Evolution Excel worth the price?

If you have a septic system, there really is no other option. If you do not have a septic system, then there are other garbage disposals that get the job done, but the InSinkErator Evolution Excel is a very high-quality option with many features all in one system.

Compare Other Models with Same HP


It has been said a lot in this review, but it is worth saying one more time: if you have a septic system, and you want garbage disposal, then there really is no other option besides the InSinkErator Evolution Excel. The easy installation, anti-vibration features, and relatively good price also add to the InSinkErator Evolution Excels appeal. It is definitely worth considering for anyone looking for a garbage disposal system.

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