How to clean mold and swampy smells off a garbage disposal rubber flap
Persistent mold and swampy odors hide on the underside of the rubber garbage disposal splash guard where standard scrubbers cannot reach. This buildup survives routine liquid cleaners like bleach or vinegar, causing foul smells to return within a week whenever you use the sink.
What the numbers show
Counted from the threads quoted below. How we count
- This comes up 14.4× more often in r/CleaningTips than across the site as a whole.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Using baking and vinegarDid this help you?
- 2Pouring diluted bleachDid this help you?
- 3Using hydrogen peroxideDid this help you?
- 4Using baking soda and vinegar, diluted bleach, or hydrogen peroxide down the drainDid this help you?
- 5Scrubbing the rubber flaps with a toothbrush and baking sodaDid this help you?
- 6Pulling out the rubber piece and soaking it overnight in hot water and a strong bleach mixDid this help you?
- 7Replacing the rubber splash guard with a metal one and washing it in the dishwasherDid this help you?
- 8Looking up the manual to run a clean cycle or tub clean with chlorine bleachDid this help you?
- 9Running the cleaning cycle with citric acidDid this help you?
- 10Pulling out the detergent tray to soak it in hot water and scrubbing the slot with a toothbrushDid this help you?
- 11Using a narrow tool like a skewer or chopstick to clear out trapped gunk and running the machine on hot with Affresh or bleachDid this help you?
- 12Buying a mini fridge to replace the built-in unit if the smell cannot be removedDid this help you?
- 13Using boiling water, dish soap, baking soda, and OdoBan to scrub and deodorize the interiorDid this help you?
- 14Using distilled white vinegar, dish detergent, Dawn spray, or Bar Keepers Friend with a scrub brushDid this help you?
- 15Taking the fridge and removable pieces outside to clean and defrostDid this help you?
- 16Wiping down sealed cans and discarding unsealed bottlesDid this help you?
- 17Using a wet dry shop vac with a small nozzle to vacuum up glass fragmentsDid this help you?
- 18Completely removing the garbage disposal unit to clean, flip upside down, and shake out debrisDid this help you?
- 19Moving the blades with a butter knife and flushing the system with waterDid this help you?
- 20Soaking in hot water and dish soapDid this help you?
- 21Scrubbing with a small brush or toothbrushDid this help you?
- 22Using dishwasher detergent, denture tablets, or citric acidDid this help you?
- 23Spraying with mold remover or bleachDid this help you?
- 24Running through the dishwasher and leaving the machine drawer open to dryDid this help you?
- 25Bleaching the reservoir to sanitize itDid this help you?
- 26Replacing the appliance entirelyDid this help you?
- 27Washing bed sheets after steamingDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“Freezer of an RV I need to clean out , Dead maggots inside and nasty liquid I don’t even know where to start”source ↗
“The Washing machine at my new place is gross. It smells musty and I can see grime/mold around the drum. Water sits in the front and stinks. How do I clean it? I can't get in there with a cloth; it's a weird angle.”source ↗
“The fridge is built into the RV I want to clean it to my best ability and if it does still smell I will buy a mini fridge and say to hell with this one”source ↗
“Thanks i was honestly panicking because of the amount of mold horror stories I’ve heard, but since I was steaming my bed I’m guessing I should just change the sheets?”source ↗
“Mold in my mini fridge in my basement, how would i go abt cleaning this out? Im 15 so if i could use household items that would be best. Do i need a mask?”source ↗
“Tried soaking with hot water and dish soap but no joy.”source ↗
“I accidentally kept water inside of the tank of my clothes steamer, and it grew mold, when I went to use it, I realized there was mold in it.”source ↗
“I’ve dumped out the reservoir and I’m wondering if I should replace it or bleach the reservoir and also if it was bad that I breathed some of the steamed mold gunk”source ↗
“There is this persistent mold(?) that keeps creeping up the kitchen sink drain. I have tried on separate occasions: baking soda & vinegar, diluted bleach, and hydrogen peroxide. It keeps coming back fully within a week, but even when it's not going strong, I can smell it anytime I am washing dishes or my hands.”source ↗
“I fear it is hanging onto the bottoms of those disgusting rubber garbage disposal flaps that I can't get a scrubber through. What do I do?”source ↗
“There is this persistent mold(?) that keeps creeping up the kitchen sink drain. I have tried on separate occasions: baking soda & vinegar, diluted bleach, and hydrogen peroxide.”source ↗
“It keeps coming back fully within a week, but even when it's not going strong, I can smell it anytime I am washing dishes or my hands. It smells awful and swampy.”source ↗
“I fear it is hanging onto the bottoms of those disgusting rubber garbage disposal flaps that I can't get a scrubber through. What do I do?”source ↗
“I grinded a glass shot glass. I got a lot out but I ran it for a while not realizing what was happening and it broke to small pieces. I cant get much more out and am afraid to keep digging in there. What should I do?”source ↗
Where this came up
People with this problem also raised
- 8How to clean a really mouldy rental shower and fix the caulk
- 2How to clean a rotten food container without touching it
- 4How to clean mold off a bamboo drying rack
- 9How to clean mold and gunk trapped inside washing machine rubber seal
- 3How to clean mold out of a smelly window AC unit
- 8How to clean mouse nests out of appliance burners