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Garbage Disposal Do's and Don'ts

By
Home Inspector with US Inspect

Garbage Disposal Dos and Don'ts

Garbage disposals can be a very useful kitchen appliance, not to mention beneficial to the environment, if used properly and maintained appropriately. Having just had a clogged disposal at my son's house during a family Valentine's Day dinner, I found myself educating my child and his wife on how to properly operate the appliance and teaching what you can and shouldn't throw into your disposal.

I believe you only have to have a clogged disposal once during a holiday event to begin permanently thinking about what you're throwing down your drain!

In the case of my son's clog, the culprit was potato peels. Doing a little research, I was very surprised at what is commonly and frequently put into disposals. I eventually came up with this list of what NEVER to put in your disposal:

Garbage Disposal Don'ts

 

  • asparagus
  • artichoke leaves
  • banana skins
  • celery
  • chicken bones (bones of any kind)
  • coffee filters
  • cooked rice
  • grease of any type
  • green onion tops
  • onion skins
  • potato peels
  • shrimp shells
  • tea bags

 

A common comment in reading other blogs was, "I've thrown everything into my disposal for years and never had a problem."  I look at that statement skeptically.  They may have never had a problem yet, but I believe one is lurking just out of sight, not to mention the downstream affect.

The items in the list above combine to damage the appliance (example bones), plug the drain piping (example peels), and load up the local waste water utility.  New York City banned garbage disposals during the mid-90's because of the difficulty of properly treating the water.  Even though this ban was eventually rescinded, it is still widely accepted among municipalities nationwide the energy and water usage required to process food scraps is substantial.

While there is a valid opposing point of view regarding food scraps sent to the landfill creating methane gas, considered to be a greenhouse gas, the larger argument says food waste is something of which we should all be cognizant and take appropriate steps to dispose of properly.

What can you do?  Only allow down the drain what is being washed off the plate.  Use cold water before, during, and after the disposal process.  Scraps should be introduced into the system slowly and sparingly.  Once a week, fill your disposer with ice cubes, then run with water.  Once a month, place two tablespoons of baking soda, followed by 1/2 cup of white vinegar into the disposal. Rinse with cold water after a couple of minutes.  Never buy a disposal that's less than 1/2 horsepower (HP); 3/4 HP would be better.  Lastly, consider a compost bin.

And please, never put coffee filters or tea bags down your disposal. 

Thanks for listening. Here's to trouble free family holiday dinners in the kitchen!

Posted By: U.S. Inspect Blog

Myrl Jeffcoat
Sacramento, CA
Greater Sacramento Realtor - Retired

I learned about celery not getting along with garbage disposals, as a young bride.  A couple of years ago, I learned about the inside of pumpkins (the fibery part) not being simpatico with disposals.  The downstream effect came to visit my house on a Thanksgiving morning, while I was trying to make a Thanksgiving feast for 22 family members.  It took my son 2 hours to clear the clog, and get the disposal going once again.  During that time, I was beginning to wonder how the Pilgrims ever managed that first Thanksgiving without running water, an unclogged drain and an operating garbage disposal:-) 

Chrissy, your posts are so valuable and informative.  I really appreciate them.

Feb 22, 2011 04:55 AM
Chrissy Doremus ~ US Inspect ~
US Inspect - Chantilly, VA
Residential Property Inspections

Thanks Myrl! It's always a Holiday isn't it?!

Feb 22, 2011 05:00 AM
Dawn Crawley
Dawn Crawley Realty - Pinehurst, NC
Find Pinehurst Homes

I used to be careful about my disposal, but now I have a septic system, I hardly use it at all. Good advise for home owners and agents to pass along to their clients.

Feb 22, 2011 11:22 AM
Tom Arstingstall, General Contractor, Dry Rot, Water Damage Sacramento, El Dorado County - (916) 765-5366
Dry Rot and Water Damage www.tromlerconstruction.com Mobile - 916-765-5366 - Placerville, CA
General Contractor, Dry Rot and Water Damage

Good post Chrissy!

We once had an egg shell incident. Dozens of egg shell, passed through the disposal okay but the grinds dammed up the drain pipes shortly after getting passed the p-trap.

**********

 

Feb 25, 2011 08:35 PM
Stephen Gaudet
Gaudet Inspections - Manchester, NH

Two additional suggestions.  One, if you have a septic system the disposal with damage and clog it.

Second, look at the pipe that runs from the dishwasher to the disposal.  Does it have a high loop?  A high loop is when the pipe runs up above the entrance of the disposal.  If the pipe is just hanging there like 90% are, you run the possibility of cross contamination from the disposal to the dishwasher.

Basically food stuffs flying around in the disposal enter the dishwaster waste pipe and clog it, worse it gets sucked into the dishwasher.

disposal

Note how the hose just drops.  Simple fix is get a hose clamp at the hardware store and secure the pipe to the back wall or cabinet.

 

 

 

Feb 28, 2011 06:08 AM
Jeff Wicklander
Corwick Home Services LLC - Libertyville, IL

Stephen....

Some states don't even allow the dishwasher to be hooked up to the disposal, like Illinois.

 

Jeff

Mar 02, 2011 04:05 PM
Stephen Gaudet
Gaudet Inspections - Manchester, NH

Jeff,  I'd bet cross contamination is the reason.

Mar 02, 2011 11:16 PM
Jeff Wicklander
Corwick Home Services LLC - Libertyville, IL

Bingo... unfortunately, you still have plumbers who just don't keep up with current code.

Mar 03, 2011 04:03 PM