Pour in 1/2 cup of salt and 1/2 cup of baking soda plus a cup of white vinegar. Allow it to work its magic overnight then flush the drain with hot or boiling water the next morning. This will sanitize the drain and kill the flies and their eggs.
Add a few drops of dish soap to a bowl of water, sugar, and apple cider vinegar. Leave the bowl out for a few days close to the drain to attract the drain flies to the sweet solution. The thickness of the added soap will trap the flies in the water. Apple Cider Vinegar + Plastic Wrap
Holistic Pest Control Solutions For Drain Fly Larva When Traditional Pest Control Fails Use Caulk
Frequently Asked Questions
How do you get rid of bathroom fly larvae?
A super simple fix is to pour boiling water down the drain to eliminate drain flies. Boil a medium-size pot of water once or twice per week, and pour down and around the drain. Another easy option uses baking soda: Combine 1/2 cup salt with 1/2 cup baking soda and 1 cup of vinegar, and pour down the drain.
Does boiling water kill drain flies?
The simplest method to clear out your drain fly issue is to pour boiling water carefully down your drain 1-2 times a day for about a week. This will ensure that the flies do not return overnight if the water did not catch all of the organic material built up inside.
Does dawn kill drain flies?
Shoot Drain Flies with Dish Soap and Water Combine equal parts dish soap and warm water in a spray bottle. Spray the drain flies with this solution when you see them; the soap acts as an insecticide and kills the drain flies (but won't put your family in harm's way).