InSinkErator Evolution Septic Assist 3/4 HP Garbage Disposer Review

Editor rating

0/5 on September 16, 2017

User's rating

456 reviews


✓  This reliable garbage disposal is built to work as a septic tank assist, and is great for homes with septic tanks.

✓  This model is incredibly easy to setup, plug in, and install. All you will probably need is a trip or two to a home improvement store to get a few small things that you need for maintenance and installation.

✓  This disposal has a large 40 ounce capacity grind chamber, that is great for handling a lot of debris. So if you normally have a lot of food debris or a large household, this can handle it.

✓  It also has a totally stainless steel grind chamber and grinding components so that they resist rust and decay. This model and its components are built to last.

✓  Soundseal technology which makes this garbage disposal so much quieter than other conventional disposals.

✓  This InSinkErator also features a two stage grinding system. With a single grind system your blades only get one pass at food debris, and that can clog your sink and drain easily. The dual stage grinding system is great for shredding debris down to tiny bits that won’t block your unit.

✓  It has a powerful ¾ horsepower motor that won’t have any trouble grinding up food waste and food debris.


It may be difficult to mount so that the garbage disposal is properly set in your sink, but also so you can access the cartridge that is attached to garbage disposal.


All around, this seems to be a great garbage disposal that would be perfect for your septic system. It is reliable, affordable, and really easy to install on your own, so you don’t need to hire a plumber to do it for you. This has great sound suppressing technology, a massive stainless steel chamber and grinding components, and a four year warranty in case anything happens with your disposal. If you are looking for a high quality garbage disposal and have been looking for one for a while, this may very well be the model for you. Make sure that you do some shopping around in the same category first to make sure this is what you want.

This unique garbage disposal is designed to be used with a septic system. InSinkErator, which is one of the best garbage disposal brands on the market, offers not only excellent features to grind food quietly but also an bio enzyme to help break down the food. It is a continuous feed disposals which is convenient and allows you to get rid of a lot of waste at one time. Here are some key features of this Evolution Septic Assist Garbage Disposal:

Highlighted Features

Sound Suppressing Technology

What we love about this garbage disposal is that it comes stocked with sound suppressing technology so that your house stays nice and quiet while you are using your garbage disposal. When you turn on most garbage disposals, they are so loud that they could wake up the entire house and your neighbors. With the InSinkErator Evolution you get their soundseal technology, so that your garbage disposal is significantly quieter than the average disposal, every time that you use it.


Two Stage Grinding

The two stage grinding system is another really nice touch for the most efficient and clean grinding you can possibly get. Many disposals that only have a single stage grinding system, which can easily get clogged with larger pieces of food debris and back up your sink. With two stage grinding you get two separate grinding phases so that you can break down larger chunks of food with the first grinder blades, and then hit those smaller chunks of food debris with another grind sequence to make them even smaller. Keeping your sink and disposal nice, clear, and clog free.

Related: Best Garbage Disposals


Bio-Charge Technology

The InSinkErator Evolution Septic Assist Garbage Disposal comes with a Bio-Charge enzyme treatment to help keep your septic system running smoothly. The enzyme helps break down food waste. The treatment also has a citrus scent to help control odors from the sink and drain.


Powerful Motor

Another excellent feature that this disposal offers is a powerful motor. The sound suppressing technology that it uses and the two stage grinding system would mean nothing unless this model could actually grind up food, right? It has a ¾ horsepower Dura-Drive Induction motor that is great for grinding up even the hardest or largest bits of food debris.


Large Capacity

What you will also like about this garbage disposal is that the disposal itself has quite a large capacity. With smaller disposals, you have to pace out when you run it. You are loading the disposal a little, turning it out, loading it again, to grind up the next load. The capsule of this garbage disposal has a large 40 ounce grind chamber so that it can take a lot of waste before you need to worry about running it. Another great feature of the grind chamber is that the entire interior and the grinding components are all stainless steel, so that it is rest resistant and built to last.

Related: Which size of garbage disposal should I get?



Another great thing about this company is that they offer a great warranty with their product. The company includes a 4 year in home limited warranty, that will take care of your garbage disposal in case you run into any difficulties or malfunctions. You can rest assured that InSinkErator wants to make sure that you have a quality, fully working, garbage disposal that lasts.


What’s in the Box?

1. The InSinkErator Evolution Septic Assist garbage disposal

2. Instruction for installing the garbage disposal

3. Quick-locking sink mount

4. Stainless steel sink stopper

5. Discharge tubes

6. Sink baffle

7. Hardware, clamp, wrench

8. Bio-Charge attachment bottle


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