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Close Up of Drain Fly

Fruit Flies in Bathroom? How to Solve This Common Problem

April 5, 2024

Discovering fruit flies or gnats in your bathroom can be a perplexing and frustrating issue. Many homeowners are puzzled by the presence of these tiny pests in a place not typically associated with food storage or preparation. However, gnats in the bathroom, particularly drain gnats, are a common problem due to the moist and nutrient-rich environment that drains provide. In this blog, we’ll explore why these pests are attracted to your bathroom and provide effective strategies on how to get rid of drain gnats and fruit flies, ensuring your space remains hygienic and pest-free.

Understanding the Problem

Before delving into solutions, it’s crucial to understand why gnats and fruit flies are attracted to your bathroom. These insects are drawn to moist environments where organic matter is present, which they need for breeding. Your bathroom drain, with its accumulation of hair, soap scum, and other debris, offers an ideal breeding ground for these pests. Thus, gnats in the bathroom, especially gnats in the drain, become a common occurrence.

How to Get Rid of Drain Gnats

Eliminating gnats from your bathroom requires a multifaceted approach, targeting both the adults flying around and their larvae living in the drains. Here’s how you can get rid of gnats in the drain effectively:

1. Clean Thoroughly

Regular cleaning is essential in preventing and controlling gnats in the bathroom. Clean the sink, tub, and toilet thoroughly with appropriate cleaners to remove any residues that might attract these pests. Pay special attention to the drains, using a brush to scrub inside the drain to remove any organic buildup.

2. Boiling Water

A simple yet effective method is pouring boiling water down the drain daily for a week. The high temperature of the water kills gnat larvae and helps dissolve organic matter that might be clogging your pipes.

3. Vinegar and Baking Soda

Mix one part baking soda with one part vinegar and pour it down the drain. This mixture creates a fizzing action that helps remove grime, hair, and other debris, clearing the way for water to flow and removing the gnat’s breeding ground. Flush with boiling water after thirty minutes.

4. Use a Drain Cleaner

For persistent problems, a chemical drain cleaner can be effective. However, use these products as directed and sparingly, as they can be harsh on your plumbing and the environment.

5. Cover Drains

When not in use, consider covering your drains with stoppers or metal screens. This simple action can prevent gnats from entering and exiting the drain, disrupting their life cycle.

6. Reduce Moisture

Since gnats thrive in moist environments, reducing humidity and moisture in your bathroom is key. Use a dehumidifier, ensure proper ventilation, and fix any leaks to make your bathroom less inviting to these pests.

Preventative Measures

Prevention is always better than cure. Regular cleaning and maintenance of your bathroom and drains are crucial in preventing the return of gnats. Additionally, consider using natural repellents like essential oils (e.g., peppermint or eucalyptus) around your bathroom to deter these pests.

Why Are There Gnats in My Bathroom?

If you’ve taken all the steps above and still find gnats in your bathroom, it’s time to look for other sources. Sometimes, the problem could be related to overwatered houseplants nearby or an issue with your home’s sewage line. Inspect your home thoroughly and address any potential breeding sites for gnats.


Dealing with fruit flies or gnats in your bathroom can be a nuisance, but with the right approach, it’s a solvable problem. By understanding why these pests are attracted to your bathroom and implementing the strategies outlined above, you can get rid of drain gnats permanently. Remember, consistency is key in both treatment and prevention.

If you’re struggling with gnats in your bathroom and need professional help, don’t hesitate to reach out. And for more tips on keeping your home clean and drain-problem-free, stay tuned to Lickety-Split’s blog. Contact us today to learn more about our drain cleaning solutions and let us help you maintain a hygienic, gnat-free bathroom.


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