How to Get Rid of Drain Flies in Garbage Disposal

With their love for humid areas, drain flies will often invade your garbage disposal, sink, bathroom and other plumbing drains. How to Get Rid of Drain Flies in Garbage DisposalAlthough, drain flies are typically harmless, they can be really annoying when they invade your indoor spaces.

If drain flies have wreaked havoc in your kitchen, then here’s a guide on how to get rid of drain flies in garbage disposal.

What Can Attract Drain Flies?

As the name suggests, these drain flies are attracted to areas where garbage and used water is channelled. They breed and congregate in humid and undisturbed areas where they feed on organic debris and contaminated water.

The most common places you can find drain flies include:

  • Kitchen sink and drain
  • Garbage disposal
  • Bathroom sinks and drain
  • Wet towels and mopping rags
  • Dustbin stashed with damp garbage
  • Septic tank and sewer system
  • Damp areas in the basement
  • Compost piles

How to Get Rid of Drain Flies in Garbage Disposal

Whenever you notice a few drain flies near your sink, it’s time to act before the wreak havoc in your kitchen. These pesky insects breed very quickly and if you don’t deal with them promptly, they can become an infestation.

If drain flies have invaded your home, then here is a guide for getting rid of them.

Step #1 – Clear Out Garbage

Garbage comes in the form of food leftovers, fruit and vegetable peels and so on. Such garbage provides a perfect environment for drain flies to thrive and breed. Therefore it is advisable to throw any garbage in the trash as soon as you’re done preparing food and washing dishes.

Step #2 – Clean and Disinfect the Sink

When grease and grime accumulates on the sink basin, it can attract drain flies which eventually go further into the drain. Therefore, it’s advisable to clean and disinfect the sink basin after every use to remove clogs and kill bacteria.

Here are some tips for clearing clogs from the sink.

  • After using your sink and shredding garbage in the disposal, clear all items and food stuff from the sink.
  • Clean the sink by scrubbing it with baking soda and rinsing it off. Avoid using abrasive scrubbers, bleaching or acidic cleaning agents as these could affect the shiny lustre on your sink.
  • Clean the faucets using a soft cloth and dish soap.

Step #3 – Clean the Garbage Disposal

Over time, the garbage disposal accumulate greases, grime and food debris. Such conditions are very conducive for drain flies because they are always humid and provide a good source of food.

Follow these steps to clean your garbage disposal of grease and foot scraps.

  • As a precaution, switch off and unplug the garbage disposal from the socket
  • Inspect the grinding chamber using a flashlight to see whether there’re visible debris. Remove the visible debris using your hands (wear gloves). If some clogs are stuck inside there, use a pliers to pull them out.
  • Disconnect the garbage disposal discharge and close it tightly with a polythene bag.
  • With the discharge closed, soak the shredding chamber with vinegar and baking soda for 45 minutes. Ensure that the solution overflows slightly into the sink basin.
  • Scrub the interior of the garbage disposal thoroughly including the rubber baffle.
  • Turn on the disposal and place a bucket underneath the already closed outlet.
  • Now, open the outlet and let the garbage disposal discharge all its contents into the bucket while flywheel is rotating.
  • Connect the disposal to the drain and pour boiling water into the sink to rinse the garbage disposal.

Step #4 – Clean the Drain Trap

By regularly cleaning the drain trap, you eliminate grease clogs, which can attract drain flies.

  • Place a shallow bucket underneath the P-trap to avoid spilling trapped water.
  • Unscrew the two slip nuts using hands or a pipe wrench in case they are tight.
  • Using a hooked wire pull any visible clogs.
  • Clean the trap using baking soda and a flexible scrubbing brush.
  • Install the P-trap back into its position and tighten the slip nuts snugly.

How to Keep Off Drain Flies from the Garbage Disposal

Cleaning the sink, garbage disposal and train isn’t enough to deter drain flies from your indoor spaces. That’s why you need to observe a few guidelines to discourage these pesky pests from your home.

Here are some helpful tips.

  • Deep clean and disinfect the garbage disposal after every fortnight.
  • Wash the dishes immediately or shortly after meals so that the sink is free from foot leftovers.
  • Emptying the outdoor trash unit frequently can discourage drain flies breeding and thriving. This prevents possible drain fly infestation.
  • Use DIY drain fly traps in your kitchen and outdoors to catch these annoying flies.


Drain flies are usually to the food debris and damp conditions in the drains. However, by regularly disposing garbage and cleaning the garbage disposal it’s possible to keep drain flies out of your kitchen.

A good way to clean the sink and garbage disposal is to use baking soda, vinegar and boiling water.

Recent Posts