There are a few steps involved, but cleaning the disposal is not difficult. If your garbage disposal smells like sewage, it may be for several reasons. It can happen. Maybe you have placed it down the drain and have disposal-related issues.

The first thing you should do if your garbage disposal stinks is to figure out why. After identifying the odour source, you'll be better positioned to address the problem.

Possible Causes of Garbage Disposal Sewage

  • A clog in the line, typically caused by food scraps, grease, or oils, is the most frequent cause of odorous trash disposal.
Sewage odours may rise via the drain if your sink lacks a P-trap, a curved section of tubing found under your sink. A P-trap is available online or at the majority of hardware stores.
  • Since sewage odours can also happen naturally due to decomposition (organic matter turning into the soil) and when water combines with specific types of minerals, there may be a problem with your plumbing system.
  • The rotting or decaying food sitting around the device's cutting blades or the drain pipes that are linked to it is what gives out the trash disposal odour.
  • At the lowest point of the curve, there is a little cap that enables you to check for blockages and remove them if discovered. To fill the trap back to its ideal level, remove the obstruction and flow the water for a limited time.
  • It is simple to disconnect the connectors on either side of the P-trap. Remove the P-trap by unscrewing the connectors. Keep in mind that it can include water! While you have the pipe out, check it for leaks and give it a thorough cleaning. If you discover a leak, carefully measure the area, note your findings, and be sure to get a replacement trap that is the same size. Replacing the P-trap and moving on to the next possible cause should you not have discovered a leak using this technique.
  • At least one central vent that emerges via the roof is present in every home. Most municipal ordinances require a minimum diameter of four inches, and all fixtures must be vented, enabling the pipework air to "vent," allowing the water to flow freely. If the vent is clogged, the water will drain down slowly.

Domestic Treatment For Garbage Disposal Odors

Using clean water to rinse or flush

Using clean water to rinse or flush

In certain circumstances, simply putting hot water through the garbage disposal can help to reduce odour problems. The hot water flushed the appliance drain pipes and the decomposing food scraps into the sewer. Doing this every time you use the garbage disposal would be best.

Washing with soapy water

A more thorough cleaning is achieved by filling the sink with hot, soapy water, letting it drain, and then turning on the garbage disposal. The food and grease stuck to the disposal blades and pipes may be cut through with a good grease-cutting dish detergent.

Garbage Disposal Leaking? Quickly Repair - Garbage Fix
Have you ever wondered why garbage disposal leaks water at first? An under-sink disposal can leak in one of Two frequent areas. So inspect them before asking how long trash disposal lasts or deciding to replace your garbage disposal. Here is an explanation of each of these, including the most

Rubber flap

The rubber flap surrounding the disposal drain and its rubber stopper frequently require a thorough cleaning. This job is easily completed with an all-purpose kitchen cleanser and a stiff nylon brush. Cleaning the area surrounding the sink drain holes is also beneficial.

Baking soda

One of humankind's greatest creations is baking soda. There are more uses for the all-purpose powder than almost anything else. You might be able to get rid of the majority of the garbage disposal odours by adding 1/2 cup of magical powder and 1/2 cup of vinegar. Before giving the disposal a good rinse with clean water, the solution should be left for about an hour.

Ice cubes and lemon peels

Ice cubes and lemon peels

Sometimes pour lemon peels and ice cubes into the sink. The first aids in cleaning the blades of dirt, while the second leaves a fragrant citrus aroma in its wake.

Call a Professional

It may be time to call a licensed plumber if these easy, DIY solutions don't successfully eliminate the unpleasant trash disposal stench in your kitchen. Longer lengths of time can cause food particles to solidify and encrust the disposal's cutting blades.

Call a Professional

They cannot be rinsed or flushed away with hot water or soap. It would be best if you had a stronger cleaning solution and hours of soaking to remove them off the blades.

A plumber will seal the outlet tube on the disposal after disconnecting the drain to stop it from emptying. A cleaning solution is put inside and let sit for at least an hour. They reconnect the drain and flush the garbage disposal with hot, clean water.

How To Avoid Unpleasant Garbage Disposal

To keep your trash disposal in good working order and eliminate the causes of odorous kitchen sinks, follow these recommendations:

  • To avoid overheating, always turn on the water when working the disposal. Cold water is ideal for this purpose.
  • After the grinding noise reduces, always run the disposal for five more seconds. Food crumbs will be left behind if you abruptly stop the blades. These can begin to decay and emit an unpleasant odour.
  • Expecting your garbage disposal to "dispose of all" is unrealistic. Throw away inorganic garbage, cooking oil, and most food scraps. Take extra care while handling eggshells, maise husks, celery stalks, potato and carrot peels, coffee grounds, and vegetable materials. These fibrous, starchy materials can cling to the blades and build up in the pipes, attracting additional particles and amplifying smells.
  • A clog in the drain vent may cause issues if sewage scents come from the kitchen sink and are accompanied by slow drains and toilets. The drain vents in most houses meet at a single roof opening. If you see any leaves or debris obstructing the vent, climb up and remove it.


By following simple maintenance advice, you may keep your kitchen from smelling like sewage and extend the life of your trash disposal.

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