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Amazon Price: $272.19 $219.99 You save: $52.20 (19%). (as of March 28, 2019 5:04 am – Details). Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Amazon site at the time of purchase will apply to the purchase of this product.

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.

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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.

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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.

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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.

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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.

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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.

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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 Reviews

5 years and running well.

92 of 92 people found the following review helpful
By DanHalen "danhalen1984"
I’ve had this disposer for over 6 years with no issues.

InSinkErator is still the best

50 of 54 people found the following review helpful
By J. harig
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.

This is a BIG unit for under your sink

41 of 46 people found the following review helpful
By Osu Sig
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.

InSinkErator Septic Assist

41 of 47 people found the following review helpful
By Phil I
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.

Great Disposer

18 of 19 people found the following review helpful
By Curt Drumm
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.

Still going strong – since 2007

8 of 8 people found the following review helpful
By Christy Smeltzer
I’ve had this disposer for five years now and it ROCKS. I grew up in a home that threw everything in the disposer, so of course I tend to do things the same way mom and dad did. 🙂 I was SO nervous moving to a house that was on septic, because I knew I was prone to throw it all down the hole. When I did research and found the InSinkErator Evolution Septic Assist, I knew it was the disposer for me. I love it. Five years later and still working great. Have never had to have it repaired; never have had it clog. My septic system runs great and we have it inspected every year. The cartridges last a long time, and don’t cost a lot from Amazon. I’d give this 10 stars if they’d let me!

finally a quiet garbage disposal

11 of 12 people found the following review helpful
By R. W. Emerson
I recently purchased a garbage disposal in which I am very well pleased. It was easy to install, but what I really like is that it is very quiet. It came with instructions which was easily understandable. And, it is easy on the eyes. The reason for purchaseing this item is that I live out in the country and I have a septic tank. There is no smelly aroma with the liquid dispencer that comes with it to eliminate any types of unpleasant odors. Now that I have it, installed it, and it works very well. The question is….would I purchase another one. Dern tootin’.

Excellent appliance

11 of 12 people found the following review helpful
By Iris Elaine Cordle
I have had this disposal for six months and it lives up to it advertisements. It is quiet and efficient. We have a small household and this disposal has preformed well. I recommend it to anyone wanting a small family disposal.

So far so good…

9 of 10 people found the following review helpful
By Connie
Our old Insinkerator went out a month ago, and after doing research found the Evolution Septic Assist just what we were looking for. I called around pricing at the major home improvement stores and then checked prices on line and found the Amazon not only had the best price, but also free shipping. Sold! Disposer arrived quickly and safely. We did a lot of online reading and watching of “how to” videos on how to switch out the old and in with the new, and while mostly problem free it was not quite as easy as we had hoped. Our first issue was getting out the old flange, it took a good 20 minutes to do so, I was worried that it wasn’t going to happen. But finally it came out, things went smoothly until it was time to put the new Evolution Septic Assist on. That disposer is HEAVY and is a struggle for one person to get on the ring. Even with phone books stacked underneath it took alot of trying to finally get it on. Once on and set up, it ran like a dream. We try not to put to much food waste down the disposer, old habits I suppose, but when we do it’s very quiet. Great product, would buy again.

Thrilled with this disposer so far!

8 of 9 people found the following review helpful
By Dominika Lepak
We purchased a forclosed home last year, and the garbage disposer was missing, so we had the $89 Big Box Store special put in, but were on a septic system, so barely used it, except for the few errant crumbs that made it through our sink strainer. Still, the thing died mysteriously a few months after installation, and we did without for awhile. We decided to splurge and buy this Septic Assist disposer, which we would have put in in the first place had we been aware that such a thing existed. This disposer is a beast, an chews up anything that dares fall into its hungry maw. We have had it installed for about two months now, and the bottle of liquid is only about 1/8 used, so I expect it to last about a year. However, I am an avid composter and also have a flock of chickens who love kitchen scraps, so we probably activate the disposer less frequently than some families would. Installation was just a touch tricky because the outlet did not match up with the pipe our old disposer used, and we had to re-do the drain assembly to make everything line up, but that wasn’t too bad. Overall, this is well worth the price, and I am so grateful that such a thing exists, to allow us to have a disposer on a septic system. The real proof will come when we have our tank pumped again in a year or two, but based on other reviews, I don’t expect any problems. Oh, this disposer is also MUCH quieter than our previous unit, especially when it’s operating with the drain cap in place. I didn’t know it was possible to love a garbage disposer, but this is one of the favorite things in my kitchen.
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