Best Garbage Disposal For Septic Systems

For those of us with septic systems, we need to pay more attention to what goes down our drains so we don’t end up causing ourselves trouble later. That’s why we need to make sure we have the absolute best garbage disposal for this unique situation. We need something that is powerful and will shred even the toughest food debris so that it will break down more easily once it finds its way to the septic tank. We researched several online review sites and read customer feedback for many garbage disposals and found that the InSinkErator Evolution Septic Assist Garbage Disposal was the best garbage disposal we found for septic systems. Continue reading to learn why it’s our pick and what your runner up options are incase you find that our number one pick isn’t the best fit for your specific needs.

best garbage disposal for septic systems

Our Number One Pick:

InSinkErator Evolution Septic Assist Garbage Disposal

The InSinkErator Evolution Septic Assist Garbage Disposal was an easy pick as our top choice. Not only is it the only garbage disposal that is specifically designed with septic systems in mind but it is also from arguably the leading company in the garbage disposal business. This 3/4 horsepower disposal is incredibly powerful and nearly the most powerful disposal of any kind that you’ll find. Plus it includes a septic assist bio fluid that it injects to help break down food waste more effectively. A disposal doesn’t need to be specifically designed to be used with your septic system, most garbage disposals will work well. But this disposal is the best garbage disposal we found for septic systems due to its powerful grinding abilities and bio charge injector that is specifically designed for septic systems.

Runner Up:

Waste King A1SPC Knight 1.0 Horsepower Garbage Disposal with Exclusive Silencer Technology

It isn’t necessary to have a garbage disposal that injects a bio charge for breaking down organic waste if you have a septic tank but you do want a disposal that will grind food waste as fine as possible so that it will decompose more easily. The Waste King A1SPC Knight is probably the most ultimate garbage disposal on the market today for that task. This brute is a full 1 horsepower strong and runs at an impressive 2800 RPM. It will absolutely pulverize anything you can throw at it. Not only that but it is also one of the best insulated disposals to help it run quiet. Waste King has an incredible reputation for quality and gets amazing reviews from reviewers and customers alike. If you want the Cadillac of disposals, this is the one to get.

Worth Considering:

Waste King Legend Series L-2600

If you’re put off by the expense of the InSinkErator Evolution and the Waste King A1SPC Knight, we recommend highly the Waste King Legend Series L-2600. Another gem from Waste King, this disposal is very reasonably priced and still far more powerful than most typical garbage disposals at 1/2 horsepower. It may not be as quiet or powerful as the Knight and it may not have the bio charge injector of the InSinkErator but it is more than capable of handling the vast majority of what most people would throw at it with ease.

Additional Information:

Things To Keep In Mind

Are garbage disposals safe for septic systems?

Absolutely! Any garbage disposal is perfectly safe for use with a septic system. Having one designed specifically for septic systems is even better.

What horsepower garbage disposal should I get?

It’s not uncommon for your typical contractor grade disposal to be 1/3 horsepower. This is adequate for light use but 1/2 to 3/4 horsepower is better. For septic systems you want more power to help better break down the food waste before it gets to your septic tank.

How long does a typical garbage disposal last?

It’s not uncommon for a garbage disposal to last anywhere from 8 to 15 years. The main culprits that cause a disposal to need to be replaced are dull blades, burned out motor, and rust through that is causing water to leak through the disposal and into your kitchen cabinet.

How much does it cost to put in a garbage disposal?

A plumber will typically charge $150 to $200 dollars plus the cost of the disposal if they are providing it. It doesn’t take that long nor is it difficult to install a garbage disposal but the plumber needs to charge a minimum fee to account for them coming out to service your house. If you’re handy with tools you may want to consider installing your new garbage disposal yourself since it’s a relatively easy job.

Do you need a disposal if you have a dishwasher?

No, however dishwasher drains are typically connected to a disposal so you will need to account for plumbing the drain directly into the drain pipe under your sink.

Why is my garbage disposal leaking water?

If it has just been installed you should check all of the connections to ensure that they are tight. This includes the connection of the disposal directly to the sink drain. If your disposal is old and hasn’t had problems with leaking before then it is likely rusted out and will require being replaced.

How long does it take to install a garbage disposal?

Installing a garbage disposal is a fairly easy job and should take less than an hour for a competent plumber. If you’re handy with tools it shouldn’t take you much longer yourself.

How do you fix a clogged garbage disposal?

Sometimes the motor will over heat and you simply need to press the reset button which is typically on the bottom of the disposal. If you can hear the motor attempting to spin and it is truly jammed you can use an Allen key placed into the middle bottom of your disposal to help dislodge the obstruction. If that fails, using a couple of broom sticks or something similar placed down into the disposal to spin in back and forth can help dislodge whatever may be blocking it from spinning.

Other Resources:

Helpful Links

Wrapping Up:

Best Septic System Friendly Garbage Disposal

The best garbage disposal on the market for septic systems is one that is specifically designed for them. The only one that fits this description is the InSinkErator Evolution Septic Assist Garbage Disposal. While you don’t need a garbage disposal that is specifically designed for a septic tank, it is nice to have that extra level of protection and consideration. That said, the Evolution is not inexpensive and the 2 Waste Kings we also suggest are extremely capable, well regarded, well reviewed, and well liked by customers. You can save yourself a few dollars by opting for a less expensive model and just use a septic additive when you run your disposal yourself.

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