InSinkErator Septic Assist 3/4 HP Garbage Disposal with Bio-Charge Injection Septic Assist - Made in the USA

Item #: bci371040
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Product Details for the InSinkErator Septic Assist

This product has additional required/recommended options. To configure, add to your cart.

  • Power Cord Required
  • Counter Switch Recommended

3/4 HP Continuous Feed Garbage Disposal with MultiGrind Made in the USA

Created specifically for homes with septic systems, the Evolution Septic Assist® delivers the new standard in sound and grind performance.

With an InSinkErator® food waste disposer in your kitchen, chicken bones, fruit rinds, coffee grounds and more can go right in the sink -- where they're virtually liquefied to safely flow into your  septic tank.

  • MultiGrind™ Two grind stages let you quickly grind difficult food waste you wouldn’t put in a standard disposer, like celery and potato peels.
  • SoundSeal™ Makes the Evolution Septic Assist™ at least 40% quieter than standard disposers.
  • 40-Ounce Stainless Steel Grind Chamber and Grind Component Handles more volume than standard disposers.
  • Bio-Charge® Injection Technology Utilizes a natural microorganism to help break down food waste.
  • 3/4 Horsepower Dura-Drive® Induction Motor Gives you more horsepower than standard disposers.
  • Does not Include Power Cord
Our SKU: InSinkErator Septic Assist

This product is listed under the following manufacturer number(s):

*Denotes a finish or option that has been discontinued

InSinkErator Septic Assist Reviews

14 Questions from the Community
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Do I need a power cord with this model insinkerator septic assist?

The InSinkErator Septic Assist does require a power cord. If you don't currently have one, you will want the CRD-00.


We are strictly an online retailer for many brands, including Insinkerator, and do not offer an installation services. We suggest contacting a local plumber or installer for specific services.

Do we have to buy the adapter or flange to it or does it come with it?

The InSinkErator Septic Assist will include a Flange.

Is the power cord included with the Septic Assist Insinkerator, or does that need to be purchased separately?

The InSinkErator Septic Assist does not include the power cord. CRD-00 is the power cord needed.

is the septic assist "batch feed" or continuous feed?

The InSinkErator Septic Assist is a continuous feed disposal.

Why does it work better with a septic?

The septic assist feature applies a micro-biotic chemical with each discharge from the unit into the system to maintain healthy levels of bacteria in your contained system.

Do you need the adapter with it to install the disposal or can you use any adapter.

The Septic Assist will be the full disposal unit and can install in any area that could accomodate a full-sized disposal without adapters.

Is there a dishwasher adapter that needs to go with this unit?

The InSinkErator Septic Assist has a dishwasher adapter connector kit sold separately. Item # DWC-00.

The enzymes that are added to aid the septic, do they come with the unit? When and how are they refilled/replaced?

The InSinkErator Septic Assist does come with the enzyme unit. The enzyme unit needs to be replaced every 6 months with regular use.

The spec sheet says that the diameter is 13". Do you know if this is the diameter of the unit at the bump for the Biocharge cartridge (Widest point)? If so, do you know the diameter at the narrowest point? Thanks in advance.

The InSinkErator Septic Assist's diameter at the widest point is approx. 13" And the diameter of the narrowest point is approx. 9 3/4" with the bio-charge pack.

Can it be used without the bio-charge units? Thanks!

The InSinkErator Septic Assist uses bio-charged injection technology, the unit is designed around this, it cannot be used without. Please let me know if you have further questions.

If I ordered an extra bio-chemical cartridge at this time what would be it's shelf life?

The Insinkerator Septic Assist does not have a shelf life and will not break down and deteriorate while in storage. 

Will this work with a prep sink?

The InSinkErator Septic Assist will work on a prep sink. Most prep sinks actually have the same size opening as a kitchen sink which is 3.5".

if the micro bio chemical runs out will the disposer stop working?

No, the InSinkErator Septic Assist  will not stop working if the micro bio chemical runs out.

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Dishwasher Disposal Connector Kit
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Dual-Position Disposal Stopper
Air Switch for Sink or Counter Top with Single Outlet Includes Chrome, White & Satin Nickel Button
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InSinkErator Septic Assist Technical Specs

Amperage 8.1
Capacity (oz.) 40
Drain Connection 3.5
Electrical Phases 1
Feed Type Continuous
Frequency 60
Height 12.625
Horsepower .75, 0.75
Made in America Yes
Manufacturer Warranty 4 Year
Motor HP .75
No Load RPM 1725
Product Weight 25.5
Use Residential
Voltage 120

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