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Foul odor coming from insinkerator disposal

We are a Homebuilder and install insinkerator disposals for our new homeowners. I have had 2 complaints from Homeowners that there is a bad odor coming from, their disposals. These complaints come from owners that bought Spec Homes that were about 2 yrs old.We have made several suggestions ranging from lemon peels, bleach, vinegar and baking soda. A Homeowner said today it sorta smelled like rust. How could this be? Please email me if you have suggestions or remedies

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  • mvanwall Jan 01, 2009

    foul smell coming from disposal unit. Had dishwasher hoses all changed out. tech said he also cleaned out disposal unit. foul odor still there. plumber said it was not the drains. Help!!!!!! Insinkerator evolution compact.

  • TDLeGrand May 20, 2009

    We installed one of the more expensive Insinkerator disposals and have had the same odor issues.  We had a plumber check the drains, dishwasher hose, etc... and he said all looks well.  Not sure what else to do... :-?



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I had an insinkerator Essential installed 2 years ago. It stinks all the time. I clean it and after a few uses it stinks again. I have had disposals in my homes for over 40 years and never had disposal odors, NEVER. I recently found the reason. The anti-vibration mounting ring at the top of the chamber is shaped in such a way that it is a natural food trap. Put your fingers just under/inside the steel mounting ring and curve them up toward the sink. There you will find a ridge about 3/8 inch deep that will be filled with old stinky food, gross.
I called insinkerator about the POOR DESIGN of this unit and they just didn't get it. They said I am the only person who has ever complained. They tried to troubleshoot the cause of the odor everywhere, even though I told them all about the large amount of stinky food I found trapped in the anti-vibration mounting ring. They were of no help at all. They agreed to send me a new replacement unit. I said OK, but the problem, and a new replacement unit will not fix it unless you have corrected this serious design flaw.

Posted on Jan 25, 2013

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The only thing that should be used to clean a disposal is "Ice" anything else will / could cause several different problems. Run the water for about 10 seconds, turn the disposal on, put a few handfulls of ice down the drain, when the ice is gone, leave the water running for about 20 seconds. This both cleans the unit and sharpens the blades..

Posted on Dec 04, 2008


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