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  • InSinkErator Evolution Septic Assist 3/4 HP Household Garbage Disposer
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InSinkErator Evolution Septic Assist 3/4 HP Household Garbage Disposer

| 14 answered questions

List Price: $410.00
Price: $199.99 & FREE Shipping. Details
You Save: $210.01 (51%)
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  • SoundSeal Technology which delivers quieter performance versus a standard disposer
  • MultiGrind Technology , with two-stage grind to quickly grind virtually any food waste; Includes one Bio-Charge cartridge
  • 40 oz. Stainless steel grind chamber and grind components for longevity
  • 3/4 Horsepower Dura-Drive Induction Motor; power cord not included
  • We Come To You 4-Year In-Home Limited Warranty
See more product details
23 new from $199.93 2 used from $173.99
Have Questions About Buying a Food Disposer? Check out our disposer buying guide for help choosing the right disposer and getting it installed and running quickly. Learn more

Frequently Bought Together

InSinkErator Evolution Septic Assist 3/4 HP Household Garbage Disposer + InSinkErator BIO-CG Evolution Septic Assist Bio Charge Replacement Cartridge, 16-Ounces + InSinkErator CRD-00 Power Cord Kit
Price for all three: $224.04

Buy the selected items together

Special Offers and Product Promotions

  • Buy Used and Save: Buy a Used "InSinkErator Evolution Septic Assist 3/4 HP Househ...” from Amazon Warehouse Deals and save 57% off the $410.00 list price. Product is eligible for Amazon's 30-day returns policy and Prime or FREE Shipping. See all Used offers from Amazon Warehouse Deals.

Product Information

Technical Details
Item Weight24 pounds
Product Dimensions14 x 11 x 16 inches
Item model number74032
Item Package Quantity1
Warranty Description4 Years All Parts and Labor
Additional Information
Best Sellers Rank #2,923 in Home Improvement (See top 100)
Shipping Weight24 pounds (View shipping rates and policies)
ShippingThis item is also available for shipping to select countries outside the U.S.
Shipping Advisory:This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
Date First AvailableJune 19, 2006

Product Description

InSinkErator Evolution Septic Assist 3/4 HP Garbage Disposal

Evolution Series garbage disposals are the world's most advanced food waste disposers. From the powerful induction motors with cutting edge grind technologies to the top-of-the-line sound reducing technologies, the Evolution Septic Assist food waste disposer is designed to be the ideal choice for homes with septic systems.Evolution Septic Assist exclusively features Bio-Charge, an enzyme treatment that helps keep your septic system running smoothly. The Bio-Charge Injection technology automatically injects more than 300 million enzyme-producing microorganisms into the Septic Assist each time it is operated.

We Come to You Parts and Labor Warranty

The Evolution Septic Assist is backed by an exclusive We Come to You 4-year In-Home limited warranty. This warranty includes free house calls (including parts and labor) for the entire warranty period. InSinkErator fulfills its in-home warranty through a network of 1500 professional service agents who are trained and certified to install, repair or replace InSinkErator brand disposers. Call our toll-free service line at 1-800-558-5700 and we'll provide you with the name and phone number of a factory authorized service agent nearest you. It's that simple.

About InSinkErator

For over 75 years InSinkErator has been known for building the world's best food waste disposers. Today, the Evolution Series disposers represent the highest standard in performance. Simply put, they are the best grinding, quietest line of disposers. InSinkErator food waste disposers are the only disposers that are proudly made in the U.S.A. of the finest quality materials. InSinkErator has grown into the largest food waste disposer manufacturer and best-selling garbage disposer brand in the world.

Hear Almost Nothing

The Evolution Septic Assist features sound reducing technology that ensures less noise than a standard disposer. This state-of-the-art technology makes it possible to hold a conversation with normal voices in the same room as the disposer. This technology includes superior insulation around the motor, an anti-vibration sink mount, and an anti-vibration tailpipe to prevent sound transmission from vibrations. The sink baffle also helps prevent sound from escaping the throat of the disposer.

Stop Worrying About What Foods You Put Down Your Disposer

The Evolution Septic Assist disposer features MultiGrind technology, which allows you to grind almost any food waste reducing the chance of clogs and jams. This disposer features a two-stage grind technology that includes a GrindShear Ring and Tri-Action Lug system that makes tough to grind foods a thing of the past as food waste is virtually liquefied to safely flow into your sewage system.

Easy Installation

InSinkErator brand disposers are the easiest to install. That's because all InSinkErator garbage disposal models feature our popular stainless steel Quick Lock sink mount. Just "twist off" the old disposer and "twist on" the new one. What's more, with Quick Lock, you can replace any InSinkErator branded garbage disposal including Badger garbage disposals.

Bio-Charge Technology

The Evolution Septic Assist disposer includes our exclusive Bio-Charge enzyme treatment to help keep your septic system running smoothly. The Bio-Charge Injection technology automatically injects millions of enzyme-producing microorganisms into the Septic Assist every time it is activated to help break down food waste. A citrus scent to helps control odors from the sink and drain.

Recycle Your Food Waste

Food waste disposers don't just offer practical convenience; they provide an environmentally sound answer to the growing problem of food waste. Food waste disposers can provide an environmentally responsible alternative to transporting food waste to landfills. And they can help reduce greenhouse gas emissions. At capable wastewater treatment plants, food waste can be recycled to produce renewable energy.

What's in the Box

The Evolution Septic Assist comes with a Quick Lock sink mount, sink baffle, Jam-Buster wrench, anti-vibration tailpipe mount, clamp, and stainless steel stopper, Bio-Charge injection technology and installation instructions.

Customer Questions & Answers

Customer Reviews

4.8 out of 5 stars
5 star
4 star
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2 star
1 star
See all 104 customer reviews
Easy installation, very quiet.
I have a septic system and this was just the ticket to have a food disposer !
This disposer feels like it will last a very long time.

Most Helpful Customer Reviews

64 of 64 people found the following review helpful By danny kuiper, Jr. on November 24, 2010
I've had this disposer for over 6 years with no issues.

I had my septic tank pumped 7 years ago and again this fall. Seven years ago I was told it was nearly full and a good thing that I called them out. This fall I was asked if I had it pumped every year and when I said that it had been 7 years ago, they were stunned. They told me it was not even 25% full and I shouldn't have had them come out. That my issues were with water, not the tank. Considering that I added this disposer shortly after the last pumping with zero impact to the septic system/tank tells me that it works.

The BioCharge can be expensive when purchased locally (ususally 25% higher), but is a little more reasonable when bought through Amazon. Either way, that is a planned expense and averages between 3 and 4 times per year.
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35 of 38 people found the following review helpful By J. harig on August 15, 2008
This is the 2nd disposal that I have installed. Our old house was on county sewer, so we did not need the added benefits of the Septic Assist. It was much more difficult to install than the new one.

The box includes nearly everything you need to install it. The only other things you need to have on hand is the plumber's putty to seal the flange in the sink, and some romex to attach the power. I did the job solo, but it would have been helpful to have another pair of hands to hold the drain in the sink while I cliped on the locking ring. Now that InSinkErator has the removable rubber seal that slips into the drain from the top, mounting the unit to the twist lock under the sink was a breeze. Since the power was already run to an outlet under the sink, I had this installed in under an hour.

I don't know how long the bottle of Septic Assist will last, but we have used it for a week without a noticable lowering of the contents of the bottle.

Running the unit is much quieter than the old ones. It's not silent, but the combination of vibration dampers and insulated chassis makes it quiet enough to talk over. It's more of a hum than a roar.

All in all, a relief to have a disposal again at the new house. Of course, only time will tell what impact it will have when we need to get the septic pumped. We plan to have it pumped every 2 years in order to keep the risk of overflow to a minimum.
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31 of 35 people found the following review helpful By Phil I on November 25, 2008
I'm really glad to finally have a disposal for this house that is on septic. No matter how diligent we were, some food particles always ended up in the sink and periodically caused drain line problems.

Installation was straight forward even though I did not have an existing disposal to replace. My two biggest challenges were getting an electric outlet under the sink and removing the old corroded sink flange.

For electric I mounted a GFCI outlet under the sink and added the optional power cord kit and sink top switch. This eliminated the need to add a wall switch since I did not have an existing disposal.

To remove the corroded flange (5 minutes max) I used a moto-tool with cutting wheel - I was working solo and didn't have anyone to help me muscle the old nut and flange apart - it just kept spinning in the sink.

As mentioned elsewhere the only other thing I needed to purchase was plumbers putty, and I bought a new hole saw for my drill to drill through the solid surface countertop for the sink top switch. Under the sink I was able to reuse all of the existing PVC plumbing where new parts weren't provided.

After a month of occasional use the Septic Assist bottle is still 7/8 full. I will still maintain the septic system with pumping every 2-3 years but I'm hoping this helps with the drain line issues inside the house.

It is much quieter than I expected and the sink top switch works great. I couldn't be more pleased with this product.
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26 of 29 people found the following review helpful By Osu Sig on March 24, 2011
Verified Purchase
This is my first product review. We had to replace our garbage disposal after 10 years in service so I checked here at Amazon for options. I happened on to the Evolution Septic Asist unit that is touted as very quiet. Since we live in a rural environment and use a septic system, I felt this might be a unit to investigate further. After looking at the reivews, I decided to order the unit. Shipping was fine and arrived in good shape.

After removing the unit from the box, I then became aware of how large this unit is. It's big. And this is something you will want to be aware of and plan for. Due to its size, we had to re-plumb some of the drains below the sink so the unit will fit. It had to be timed and placed in a less than favorable position but it will work. Be sure you have adequate room under your sink before ordering the unit so as not to cause unnecessary work when installing.

Having it finally in place, the unit performs wonderfully. It's very quiet and does exactly what it is designed to. I'm glad I bought it but would like to have known more about installation issues that were a possibility, prior to purchase.
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13 of 14 people found the following review helpful By Curt Drumm on December 21, 2009
Verified Purchase
We purchased this disposer for our cottage in northern Wisconsin. Never had one before because we were concerned about the septic system. Found this unit, designed for use with septic systems, and couldn't be happier. Installation was straightforward, with easy to follow instructions. Unit is very quiet, and chews up just about everything without any effort. Well, except for the dish rag we put down by accident, but even that didn't jam it, we just heard a weird noise and shut it off. Great product, great feature with the bio-waste chemical it injects to aid the septic system. We also bought an air-activated pushbutton switch to turn it on. Neat innovation that uses air hoses to activate power...much easier than rewiring a wall to add the switch. Works flawlessly.
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