How To Get Rid of Sewer Flies in Rv

How to Get Rid of Sewer Flies in RV

Sewer flies, also known as drain flies or moth flies, can be a nuisance when they infest your RV. These small insects are often found near drains or sewage systems, hence their name. If you’re dealing with sewer flies in your RV and looking for effective solutions to get rid of them, you’re in the right place. In this article, we’ll discuss some simple yet effective methods to eliminate these pesky bugs.

Step 1: Identify the Problem Areas

The first step in getting rid of sewer flies is to identify the problem areas in your RV. Check the drains, sinks, shower, and toilet for any signs of flies or larvae. Pay close attention to the areas with stagnant water, as sewer flies breed in moist environments.

Step 2: Clean and Maintain Your RV

Proper hygiene and regular maintenance are key to keeping sewer flies at bay. Make sure to clean your RV thoroughly, paying extra attention to areas prone to moisture and organic buildup.

Use a drain cleaner regularly to remove any residue or debris that may attract flies. Make sure to keep your sewage system in good condition and empty the tanks regularly to prevent any potential breeding grounds for these insects.

Step 3: Seal Any Entry Points

Sewer flies can enter your RV through small gaps or cracks. Inspect your RV for any potential entry points, such as damaged seals or vents.

Seal these openings using caulk or weatherstripping to prevent the flies from entering and infesting your RV. This will not only help in getting rid of the existing flies but also prevent them from returning.

Step 4: Natural Remedies

If you prefer natural or chemical-free methods, there are several home remedies you can try to eliminate sewer flies:

  • Vinegar Trap: Fill a small bowl with apple cider vinegar and cover it with plastic wrap. Poke a few holes using a toothpick. The flies will be attracted to the vinegar and get trapped.
  • Baking Soda and Vinegar: Pour half a cup of baking soda followed by a cup of vinegar down the drains. Let it sit for about 30 minutes, then rinse with hot water. This mixture will help break down any organic matter that may be attracting the flies.
  • Essential Oils: Mix a few drops of essential oils like peppermint, eucalyptus, or lavender with water. Spray this mixture around the drains and problem areas in your RV. The strong smell of these oils repels the flies.

Step 5: Chemical Solutions

If natural remedies don’t work, you may need to resort to chemical solutions. There are various commercial drain cleaners and insecticides available in the market that can effectively eradicate sewer flies.

Follow the instructions provided on the product label carefully and use these chemicals as directed. Ensure proper ventilation and take necessary safety precautions while using any chemical-based products.

Step 6: Seek Professional Help

If your efforts to eliminate sewer flies in your RV are unsuccessful, it’s advisable to seek professional help. Pest control experts have the expertise and tools to deal with stubborn infestations.

They can assess the severity of the problem and provide targeted solutions to eradicate the flies. Remember that prevention is better than cure, so it’s important to take necessary measures to prevent a re-infestation in the future.

Frequently Asked Questions Of How To Get Rid Of Sewer Flies In Rv

Q: How Do Sewer Flies Get Into Rvs?

A: Sewer flies can enter RVs through open doors, vents, or cracks, attracted by moisture and food sources.

Q: What Are The Signs Of A Sewer Fly Infestation In An Rv?

A: Common signs include seeing small flies near drains, smelling a sewage-like odor, and noticing maggots in drains or toilets.

Q: Can Sewer Flies Cause Health Problems To Rv Occupants?

A: While sewer flies themselves are not known to transmit diseases, their presence may indicate unsanitary conditions.

Q: How Can I Prevent Sewer Flies From Infesting My Rv?

A: Keep drains clean and dry, fix any leaks or cracks, regularly empty and clean holding tanks, and ensure proper ventilation.

Q: What Are Some Effective Methods To Eliminate Sewer Flies In An Rv?

A: Use drain cleaners, traps, or natural remedies like vinegar and baking soda to get rid of sewer flies in your RV.


Sewer flies can be a frustrating problem in your RV, but with proper hygiene, regular maintenance, and appropriate solutions, you can eliminate and prevent their infestation. Clean your RV thoroughly, seal any entry points, and make use of natural or chemical-based remedies if needed. If all else fails, don’t hesitate to seek professional assistance. Keeping your RV fly-free will ensure a more pleasant and comfortable experience on your next adventure.

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