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How to Eliminate Drain Flies and Prevent Future Infestations

Drain flies are flying insects that live and reproduce in clogged drains. It’s often mistaken as fruit flies because it’s under the same species and shares a lot of physical characteristics. These bugs don’t pose any serious threats but they can become annoying, especially when whole swarms are flying around your household. Learn how to eliminate drain flies and prevent infestations in the near future with these pointers.

Is it Really a Drain Fly?

A lot of people are confused between drain flies and fruit flies since both of these species are tiny and hang around in groups. Even though both flies kind of look the same, there are actual differences upon closer inspection. First of all, drain flies are characterised by their grey or brown colour. It also has some fur-covering which gives it a more moth-like appearance. Fruit flies are often found flying on food waste and fruits while drain flies are found in bathroom or kitchen drains.

Confirming where the infestation is located

Clogged drains are what these insects like most. There’s plenty of nourishment from stuck food debris and the water flow is very slow. However, you need to check all the drains to confirm if some are infested or not. Get any kind of tape and partially cover the drain with it. You should not cover the whole drain since the drain flies will find another way out—leaving you with no evidence of the infestation. The adhesive or sticky part must be facing down into the drain so that the flies will stick if they plan on flying out the drain. Leave the tape for a couple of days. The fly infestation is confirmed when you find any fly caught by the adhesive tape. A larva that is slithering out of the drains is a more obvious sign of drain flies.

Removing the Flies

Even if you managed to swat all the drain flies into oblivion, you won’t be able to completely eliminate these insects if the breeding ground isn’t destroyed. You must clean and unclog the drains where the flies come from. Use a pipe brush to cleanse the linings of the pipe and loosen any form of debris. Take your time in brushing the pipeline. After that, insert a drain snake into the pipes so that hair and other residue are removed.

If you’re not satisfied with the clean-up, you can use a plunger. Run hot or cold water before you start unclogging the drain for easier plunging. Once you’re done, pour boiling water into the drain. This should help eliminate the remaining clogs.

Preventing Fly Infestations in the Future

The key in stopping this infestation from ever occurring again is to do a proper cleaning maintenance with your drains, especially the kitchen sink. Avoid dumping solid waste into the drains as this can produce clogs and become the perfect breeding ground for drain flies.