Yes, bleach does kill drain flies. But if you are concerned about using bleach in your drains – you can look into some commercial and home remedies that are less harsh that may also help to kill those pesky drain flies.<\/p>\n\n\n\n
The amount of bleach needed to kill drain flies depends on how back the infestation is. But generally speaking, the recipe calls for 1 part bleach to 10 parts water.1. Combine 1 part bleach to 10 parts water
2. Pour this mixture down the drain
3. Let it sit for about 4 hours
4. Run cold water down the drain<\/p>\n\n\n\n
This bleach method may work but know that it doesn’t have the scouring effect that baking soda and salt have to scrub the pipes (and help to remove the larvae).<\/p>\n\n\n\n