I have the smell of rotten onion in my basement, we can't find the source. Do you have any suggestions?
By Sherrie
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I googled "rotten onion smell in basement" and got some really good articles, including one from here in 06. I hope that helps.
That could be a decomposition of a mouse or other animal .had that smell coming in my house when winter came and we put the heat on eeventually it must have dried out smell went away but it was around two weeks
Could this be an animal marking its territory, or nesting? I have cats, so don't have such issues. An animal in your case might even be a snake, since they may deposit odors.
Check to see if you have any dry sink or bath tub drains. If you have a bathroom or wetbar sink that isn't used regularly, a dry trap can let sewer odors back into the home. Do you have a dry sump pump? Same problem. Do you have any plants in water vases? If water is not changed regularly, roots begin to rot and stink. Are you storing any root vegetables that might be going bad?
I had a pipe break in my cellar and now it has a sewage smell all the water fell on the floor how do I get rid of it
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