How To Get Rid Of Little Black Flies In My Septic Tank? (Solution)

Soap + Water + Sugar + Vinegar 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.

How do I get rid of drain flies in my septic tank?

Make up a solution of equal parts white vinegar, water and sugar and place 5-10 drops of liquid dish soap into the mixture. Place it next to the sink and flies will be drawn to the liquid and drown.

How do I get rid of sewer flies in my black tank?

How to Kill RV Sewer Flies with Enzyme Drain Cleaners

  1. Drain the black tank like normal.
  2. Add water and the enzyme drain cleaners. Fill the rest of the black tank with water.
  3. Allow the tank to sit full of water and the enzyme drain cleaners overnight.
  4. Drain the tank.
  5. Rinse and re-rinse the tank.

Do drain flies ever go away?

The length of the life cycle of a drain fly varies depending on the climate and temperature of the drain, but it can last anywhere from eight to 24 days. Once you’ve wiped out their breeding ground, the adults will eventually disappear because there is nowhere left for them to deposit their eggs.

Will bleach get rid of drain flies?

Does Bleach Kill Drain Flies? While this chemical might get rid of some larvae, bleach passes quickly down the drain and does not penetrate the thick build-up where eggs are deposited by the female drain fly and larvae live. As a result, in most cases, bleach does not get rid of drain flies.

Is vinegar safe for septic tanks?

Will baking soda hurt a septic system? Baking soda and other common household solutions such as vinegar are not harmful to your septic system. Harsh chemicals such as bleach and ammonia can disrupt the good bacteria in your septic tank and should not be used as part of a septic treatment.

What spray kills drain flies?

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). Pour about ¼ cup of apple cider vinegar into a glass and cover it with plastic wrap.

Can you put bleach in RV black tank?

Cleaning your black water holding tank is best done when you’re fully hooked up and have both a water and sewer connection. Avoid using bleach or antifreeze for your deep clean, as both of these can dry out rubber seals and ultimately ruin your sewage system.

Can you put baking soda in RV black tank?

Baking soda dissolved in water is an effective home remedy for heartburn and acid indigestion. RV water tanks can be deodorized by flushing a solution of one cup baking soda mixed with one gallon of warm water.

Can you use vinegar to clean RV toilet?

Yes, you can put vinegar in an RV toilet. Vinegar in combination with baking soda is great for cleaning and whitening the toilet bowl. To clean your RV toilet tank you will need: A bottle of white vinegar.

What does a drain fly look like?

Body: Light gray or tan body and lighter-colored wings. The body and the wings are covered with long hairs, giving the fly a fuzzy appearance. Characteristics: When at rest, the drain fly folds its wings over the body in a characteristic roof-like manner. Size: Drain flies measure about 1.5 to 5 mm long.

What are tiny black flying bugs?

These small black bugs flying inside your home that are not fruit flies, or mosquitoes, are fungus gnats. Fungus gnats look like tiny mosquitoes. Outdoors, these small flying bugs live and breed on damp soil beds, compost piles, decaying organic waste like foliage, rotting wood pieces, and mulch beds.

Where do little black flies come from?

Typically, gnats will enter your house from the outdoors through cracks or holes in your foundation, walls, windows, or doors. Gnats often infest trash cans, rotten fruit, and other moist places where decomposing organic matter exists.

Why do drain flies keep coming back?

What causes drain flies? Stagnant pools of water, particularly in pipes and other drainage areas, attract drain flies. These small, gnat-like insects feed on and breed in sewage. Organic material can build up along the side of drains quickly, welcoming drain flies to eat and reproduce.

How does apple cider vinegar get rid of drain flies?

Pour 1/4 cup of apple cider vinegar into a glass and cover tightly with plastic wrap. Poke holes in the plastic wrap with a fork and place the glass next to the sink. Flies will be attracted to the cider vinegar and work their way inside and drown.

Can drain flies lay eggs in humans?

No, drain flies (Psychodinae) do not lay eggs in humans. They are not parasitic, and the human body is an inhospitable environment for them. Their close relatives, sand flies, are not as friendly, but these are not going to be invading your home in most regions.

How to Get Rid of Drain Flies

Stagnant water or germs can collect in home drains, especially if the sink or drain is left unattended for an extended period of time. In the event that you’ve observed a sudden influx of extremely little, moth-like insects hanging out around your sinks, showers, or baths, it’s possible that you have drain flies. It is possible to have an infestation of these extremely common pests in as little as 48 hours, making it quite simple to find oneself with an infestation in a short period of time. In contrast to other pest infestations, learning how to get rid of drain flies may be a quick and straightforward process.

Here in this tutorial, we’ll address all of your concerns regarding how to get rid of drain flies and who you should contact if you need the assistance of a professional pest control firm for assistance.

What Are Drain Flies?

Drain flies are widely referred to by a variety of nicknames, including moth flies and sink flies. In terms of size, they are similar to gnats and fruit flies—between 2mm and 5mm in length—but may be differentiated by their tiny, moth-like wings and spherical, fuzzy bodies. Drain flies are further distinguished by their coloration as compared to other tiny house flies, with their hues often ranging from pale gray to black. Despite the fact that they resemble moths, these little organisms are unable to fly very far.

Despite the fact that drain flies have a lifetime ranging from eight to 24 days, they may lay and hatch up to 300 eggs in as little as 48 hours, making it critical to get ahead of the problem before it has a chance to spread throughout your pipes.

Where Do Drain Flies Come From?

They are drawn to stagnant water that has collected even trace levels of germs and sewage, which is why they are frequently observed congregating near areas such as

  • Kitchen and outdoor sinks
  • Shower and bathtub drains
  • Basement sinks (particularly those that have been ignored for a long period of time)
  • And toilets. Sewers
  • Septic tanks
  • Sewage treatment plants Soil that has been contaminated by sewage

One thing that all of these locations have in common is low, stagnant water levels. During periods of stagnant water and sewage accumulation, drain flies can deposit their eggs in the film that accumulates on the interior of pipes and drains. As a result, drain flies may be drawn to the following items:

  • Storm drains with standing water
  • Wet mops and buckets
  • Compost pilings Garbage cans, birdbaths, and barns that are surrounded by water

What Do Drain Flies Eat?

In order to survive, drain flies must feed largely on organic material found in standing water, which may include sewerage or other polluted water. This occurs most frequently when a film forms on the inside of pipes due to condensation, usually in a humid environment with standing water. As a result, drain flies find your drains to be an excellent environment in which to live and breed. A gathering of rubbish, animal waste, or compost may also be a source of food and sewage for these creatures.

Are Drain Flies Harmful?

In a nutshell, drain flies do not pose a threat to human health. Drain flies are not disease-carrying insects, despite the fact that they consume and live in sewage and germs. However, when in large numbers, they can transport bacteria with them. Overall, they have not been shown to be harmful to your health, despite the fact that they are a major annoyance in your house.

As previously said, drain flies have the ability to multiply fast, resulting in the proliferation of nests throughout your pipes that may be extremely difficult to remove if left unchecked.

How Can You Tell If You Have Drain Flies?

If you’ve begun to see these small moth-like flies in and around your house, you may not be aware that you have a developing infestation in your plumbing. There are a few surefire techniques to determine whether or not there are any more drain flies living and breeding in your pipes.

Duct Tape Test

Using duct tape, cover the top of your drain and leave it sealed for at least 24 hours. Drain flies will ultimately attempt to rise to the surface, but will become entangled in the tape as they exit the system. Not only does this get rid of some of the flies in your drain, but it can also give you an estimate of how large the infestation has grown over the course of time. Repeat the process multiple nights in a row to gain a thorough understanding of the problem.

Check for Larvae

Drain flies are known to deposit their eggs in the organic material that accumulates just at the opening of your drain’s main orifice. Remove the drain cover and check for thin, tube-like drain-fly larvae by scraping some of the slime off the sides and underneath the drain cover. Even if you don’t see any eggs here, but are confident that you have an infestation, this might be a clue that the eggs are being placed further inside your plumbing system.

Ways to Get Rid of Drain Flies

It is possible to use a natural or chemical method to get rid of drain fly infestations; however, this will depend on the severity of the infestation. In many cases, basic household things such as items found in your kitchen or beneath the sink may be used to effectively eliminate drain flies rapidly.

Natural Ways to Get Rid of Drain Flies

When it comes to removing drain fly larvae and removing any incentive for drain flies to return, just washing out your drains can be effective in certain circumstances. Use these strategies to handle your infestation, both as a preventative measure and as a management strategy.

Boiling Water

The quickest and most effective way to resolve your drain fly problem is to gently pour boiling water down your drain 1-2 times a day for approximately a week. This will ensure that the flies do not return the next morning if the water did not catch all of the organic material that had accumulated within.

Baking Soda + Salt + Vinegar

Combine this tried-and-true pantry concoction to make a natural cleaning solution that you can pour down your drain overnight. The baking soda expands as a result of the vinegar’s presence, reaching a greater area than boiling water. After allowing the solution to rest until the next morning, flush the pipe with hot water to clean it.

Soap + Water + Sugar + Vinegar

Combine the ingredients in a bowl and stir well. Add a few drops of dish soap to the mixture. To attract drain flies to your sweet solution, leave the bowl out for several days close by the drain. The flies will be trapped in the water due to the thickness of the soap that has been added.

Apple Cider Vinegar + Plastic Wrap

Plastic wrap may be used to make another typical DIY fly trap by wrapping a bowl, jar, or mug with it.

Fill the bottom of the container with apple cider vinegar to a depth of one inch. Using small holes at the top of the plastic, you may let fly larvae in while preventing them from escaping.

Drain + Duct Tape

Use our drain fly detection approach, which we discussed above, to eliminate some of your drain fly problems as well. Sealing up your drain with duct tape overnight for several nights in a row can help to catch any flies that attempt to reach the surface of the water.

How to Get Rid of Drain Flies with Chemicals

Because drain flies frequently congregate in or around your pipes, basic drain cleaners and chemicals for clearing drains are effective at eliminating drain flies. When using chemical cleaners, make sure to follow the manufacturer’s directions and avoid mixing them with other chemical or natural cleaning solutions.

Traditional Drain Cleaner

It is possible to wipe up the residual residue in your drain after flushing it with warm water and using a metal pipe brush. Drano and Bio-Clean are two solutions that may be used for this purpose. If required, double-check if it is okay to use these goods more than once and whether they may be used in drains other than those in the bathroom.

Chemical Sprays and Repellents

In many cases, popular pest control products, which are generally intended to fight fruit flies or gnats, can be used to kill drain flies if the pests are stated on the product label. Because many of them include caustic chemicals, you should determine if you should keep them out of the kitchen and whether you need be especially cautious about causing harm to your drains.

  1. It is safe to flush Green Gobbler down drains, septic systems, and even garbage disposals because it is an effective fly killer. This gel-based drain cleaner is great for problematic pipes that require an expanded cleaner to catch any further nests or flies
  2. It is non-toxic and environmentally friendly. American BioSystems: Typically advised for business drains, this is an extreme alternative for removing germs out of drains, particularly when dealing with a drain fly infestation
  3. However, it is not recommended for residential drains.
See also:  How Often Does A Septic Tank Need Pumping Out? (Solution found)

How to Prevent Drain Flies

Drain flies are attracted to stagnant pools of water that contain sewage and other organic matter, according to the CDC. Drain fly infestations may be prevented by maintaining clean pipes that are cleaned out on a regular basis, either with water or, in more severe situations, with cleaning solutions, according to the manufacturer. Using a stopper to shut a drain that is routinely left unattended for days or weeks will prevent drain flies from establishing a nest there in the meanwhile, according to the EPA.

Never keep soiled mops in buckets of water, and make sure your septic system is in good working order.

It is critical to take preventative measures in order to identify and treat a potential problem.

Professional Drain Fly Control

Drain flies may be eliminated quickly and effectively by experienced specialists using tried and true methods. We’ve looked into the best pest control companies in the country. Based on our years of expertise, pricing, and customer feedback, we’ve selected the following products for drain fly management.


All states, with the exception of Alaska, North Dakota, and South Dakota, are served by TheTerminixteam’s vast pest management services. Terminix offers several different tiers of programs, each tailored to meet your specific requirements.

This pest control company provides exceptional customer service, offers flexible pricing, and has decades of expertise in the industry. If you would like to receive a free estimate from Terminix, please contact the firm at 866-569-4035 or complete this short form.


In business for more than a century, Orkin has been resolving pest management difficulties for households across the country. Orkin is accessible in all states with the exception of Alaska, Wyoming, and South Dakota. The organization uses Integrated Pest Management techniques and has received good customer feedback.

Frequently Asked Questions

Are you dealing with drain fly problems that won’t go away and don’t know where to begin? A quick reminder of all you need to know about preventing the situation from getting out of hand is provided below.

What causes drain flies?

Drain flies are attracted to stagnant pools of water, which may be found in pipes and other drainage locations. These little, gnat-like insects live in sewage and feed on it, breeding in the process. Organic debris may quickly accumulate along the sides of drains, providing a breeding ground for drain flies to feed and reproduce.

How long does it take to get rid of drain flies?

The majority of drain fly infestations may be controlled in less than a week with consistent treatment. A pest control specialist may be required if you have a widespread problem with your pipes. This will help you identify and address the source of the larger issue.

Will Drano kill drain flies?

With consistent treatment, most drain fly infestations may be controlled in less than a week. A pest control specialist may be required if you have a widespread problem with your pipes. This will help you identify and address the source of the problem.

Will drain flies go away on their own?

It is unusual that drain flies will go away on their own if you leave standing water in your pipes or on your property to continue to accumulate. Drain flies may even survive the winter in warm homes because of the warmth. After washing out your system, be sure to take precautionary measures to keep drain flies under control. When DIY methods fail and the flies continue to return, we recommend consulting with a professional in order to ensure that you are addressing the entire problem properly.

How to Get Rid of Drain Flies

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Table of Contents:

  1. What are drain flies, are drain flies harmful, and what causes drain flies are all covered in this article. Disinfect breeding sites for flies
  2. Drain Flies: How to Get Rid of Them in Steps
  3. Alternative Treatments for Drain Fly Control
  4. Drain Flies Have Returned
  5. Should I Call a Plumber or an Exterminator
  6. How Do I Prevent Drain Flies From Returning
  7. Drain Fly Solutions is based in Syracuse, New York and provides a variety of services.

Drain flies are not uncommon, although their appearance may be perplexing to some people. What is the source of their existence? What are they doing in my house? Is it possible for drain flies to harm my family? Drain flies, like any domestic pests, may be a nuisance, especially when present in high numbers. Besides becoming familiar with the techniques required to get rid of drain flies, you should also become acquainted with what drain flies are, what causes them, and how to avoid a future infestation.

What Are Drain Flies?

Drain flies are probably something you are already familiar with, even if you are not aware of it. Drain flies, also known as “Psychodidae,” are little insects that measure between 1/8 and 1/10 of an inch in length. They are wide, hairy, and generally a dark tint, as is the case with wolves. There are six legs, two sets of wings, and antennae on this fly. Drain flies are sometimes referred to as “moth flies” or “sewage flies” in some circles. Drain flies are frequently found sitting on the walls of kitchens and bathrooms, as well as near sewer drains, garbage cans, and septic tanks, among other places.

Drain flies are attracted to sewage and pipe buildup and feed on it. They are born with specific breathing passages that allow them to survive even when they are submerged in garbage.

Are Drain Flies Harmful?

Drain flies are generally not hazardous to humans, despite their unnerving presence, because they do not bite. The presence of high numbers of drain flies, on the other hand, might be a problem because of their proclivity to clog up sections of plumbing systems.

What Causes Drain Flies?

Drain flies are drawn to quiet, stagnant water because it is sluggish. In the event that you have spotted these pests in and around your property, it might indicate the presence of drain obstruction or water leaks. In the same manner that typical household flies enter your home, drain flies do as well: they squeeze through windows and drains, fly through open doors, or emerge from the basement.

Drain Fly Breeding Sources

In the vicinity of the source of waste to which they are drawn, such as domestic drains and sewers, drain flies reproduce and lay their eggs. These eggs will hatch in around 48 hours. They are white when they hatch into larvae and are commonly seen inside the gelatinous component of the build-up after the eggs have hatched into larvae. They will remain in this membrane until they reach maturity. While the sight of squirming larvae might be disconcerting, they are frequently beneficial since they eat away at the accumulation of waste while they are around.

Drain flies, on the other hand, reproduce rapidly, which means that once the adults have died, there will almost likely be a fresh group of larvae ready to take their place.

Steps for Getting Rid of Drain Flies

The first step in getting rid of drain flies is determining where they are coming from. Check for broken sewage lines outside, as well as the wet region beneath air conditioning units and any other areas where there is a pool of still water. Concentrate your search inside on the places where you notice the greatest number of adult drain flies. This might be in close proximity to sink and bathroom drains, toilets, showers, or floor drains, among other things. If you need assistance determining whether or not flies are present in a specific drain, you have a few possibilities.

The theory is that, if a big number of drain flies make their home in the drain, they will become stuck inside the jelly, so verifying their existence in the drain.

One possible method of removing this build-up is to use a bristles brush of plumbing grade and manually scrape the membrane away from the pipe.

This should only take a few of weeks at the most if there is no organic debris for them to deposit their eggs in during that time.

Natural Remedies for Drain Fly Control

It is possible to get rid of adult drain flies that have remained after they have been killed using insecticides. Set up a trap, consisting of a bowl filled with one part water, one part sugar, and one part white vinegar, as an example. Dish soap (five to eight drops) should be added. Adult drain flies should be attracted to the bowl if you leave it out during the course of the night. Another option is to make a do-it-yourself spray by mixing equal parts warm water and dish soap together.

As soon as you notice adult flies, spray them. Using an old-fashioned fly swatter to get rid of adult drain flies is perhaps the most natural method of doing away with them. Despite the fact that this procedure is typically untidy to clean up after, it does not entail the use of any chemicals.

How Do I Keep Drain Flies From Returning?

If you have completed the difficult task of identifying and eradicating the cause of your drain fly problem, you need take the appropriate precautions to prevent them from recurring. The most effective method of accomplishing this is to maintain your drains and pipes as clean as you can. Allowing muck to accumulate over time is not recommended. Aside from that, you should make every effort to minimize any sources of stagnant water, including repairing minor leaks around the house as needed.

Should I Call a Plumber or an Exterminator?

A plumber should be called if a large number of drain flies keep returning to your home despite your best efforts, no matter what you do. Because they feed on sewage and plumbing buildup, a plumber may need to take a closer look at the interior sections of your plumbing in order to locate and eliminate the source of the infestation. Fortunately, most plumbers are familiar with this procedure. However, while exterminators may be able to assist you in getting rid of the flies, they are not equipped to deal with the more sensitive portions of the plumbing that they may come into touch with throughout the process.

Drain Fly Solutions in Syracuse, New York

Mr. Rooter Plumbing of Syracuse, New York is a top-rated plumbing business that can help you get rid of those pesky drain flies in your house. Contact us now for more information. If you have a drain fly infestation, our professional plumbers can assist you in locating the cause of the infestation by performing a plumbing diagnosis and inspection or by finding leaks in your home’s plumbing system. Why should you use Mr. Rooter Plumbing? Among the many reasons to select Mr. Rooter Plumbing are the following:

  • Pricing up front: At Mr. Rooter Plumbing, we understand how crucial it is to have access to economical plumbing services. Unlike other companies, we provide upfront, flat-rate pricing that you agree to before we begin working on your property. In order for you to have complete control over your plumbing, our specialists will take the time to explain each and every step of the procedure. Customer service that is second to none: Our specialists promise to leave your house as clean as we found it, and they are committed to providing pleasant, courteous, and knowledgeable service on a consistent basis. Locally owned and operated businesses include: The fact that Mr. Rooter Plumbing has sites all throughout the United States does not detract from the fact that those stores are locally owned and run. Licensees and insurers include: Each of our plumbers is licensed and insured, which speaks volumes about the level of expertise and skill that our plumbers possess. Parts of the workmanship are guaranteed: Mr. Rooter Plumbing provides high-quality service each and every time, guaranteeing that the task is completed correctly the first time. Professionals who are courteous and in uniform: Our dependable workers are easily identified by their uniforms. Do you have a question? Our plumbing technicians are available to answer questions and do the task as fast and effectively as feasible. Availability of convenient appointment times: Availability of convenient appointment times puts the power back in your hands. For your convenience, Mr. Rooter Plumbing provides appointment times on weekends and after hours.

Contact Mr. Rooter Plumbing today to receive a quote for your plumbing project. Previous PostNext Post Previous Post

Keep Your Sinks Clean to Avoid Drain Flies from Moving In

When you see an insect inside your home, it’s preferable to take action as soon as possible to prevent them from reproducing. Drip flies, like troublesome fruit flies, bothersome gnats, and even fleas, are another type of frequent domestic insect that, well, annoys us. Drain flies, which are only one-eighth of an inch in length, like to concentrate in areas where there is standing water. They’re gray or taupe in color and have short, rounded wings. They’re also known as moth flies, sewer flies, or filter flies due to their location in sewers.

Drain flies may survive for up to three weeks, and fresh eggs can hatch every 48 hours or so, which is astonishing considering their size.

How do you get rid of drain flies?

Most drain fly problems may be resolved in about a week if they are cleaned on a regular basis and given careful attention. The following are five methods for getting rid of drain flies:

  1. Starting with your regular cleaning solution, clean the sink and drains thoroughly. Make use of a pipe brush to clean the area surrounding and within the drain Drain flies may be eliminated by pouring boiling water down the drain, which is a very easy solution. Once or twice a week, bring a medium-sized pot of water to a boil and pour it down the drain and around the drain trap
  2. Another simple solution is to use baking soda: Pour down the drain a mixture of 1/2 cup salt, 1/2 cup baking soda, and 1 cup vinegar, and let it sit for 15 minutes. Finish by pouring boiling water down the drain the next morning
  3. Allow to sit overnight. If you want a more powerful solution to get rid of drain flies, consider using a store-bought drain cleaner such as Drano or Bio-Clean. Using one of these chemical unclogging treatments will clean up the drain and pipes, as well as remove any materials or debris that may be forming a breeding habitat for drain fly eggs, so preventing fresh eggs from developing. If you’re still seeing adult drain flies about, you may set up an apple cider vinegar trap in a shallow dish covered with plastic wrap to catch them. The act of poking holes in plastic wrap will attract flies in while preventing their escape
See also:  How To Find A Septic Tank In The Winter? (Correct answer)

What causes drain flies?

Drain flies are attracted to moisture—particularly stagnant, shallow water—as well as organic material, and they are most commonly found near sources of food or bacteria, such as sinks and showers. They are generally found in locations that are not used regularly, such as a basement or workshop sink, and they are also seen after being away from home for an extended period of time, such as on vacation.

They can also appear in an area that appears to be pretty clean. This material has been imported from another source. Visiting their website may allow you to access the same stuff in a different format, or it may provide you with even more information than you could get elsewhere.

How do you know if you have drain flies?

If you find one or two, you may put them through this overnight test: Place strips of tape (sticky side down) over the drain that is causing the problem (see illustration). As they attempt to flee, they will become entrapped on the tape, and you will have a good idea of how many flies you are dealing with at any given time.

Are drain flies harmful?

Nope! They do not bite or spread disease to humans, but they are an indication that your kitchen may benefit from a thorough cleaning, especially if you want to avoid more insects such as roaches from joining the festivities.

Fight drain flies with these kitchen cabinet staples:

Bio-clean Drain and Septic Tank CleanerBio-clean Drain and Septic Tank Cleaner $49.95 Mrs. Meyer’s Clean Day Dish Soap is a dishwashing soap made by Mrs. Meyer. is Mrs. Meyer’s online store. $11.64 Pipe Cleaning Brushes Made of Nylon XIONLAB Drain Opener with a Safer DesignXion $18.98s Amy Mitchell is a woman who lives in the United States. At Country Living Magazine, Amy Mitchell is the managing editor, and she oversees the whole publication. This material was generated and maintained by a third party and imported onto this website in order to assist users in providing their email addresses for further consideration.

Drain Flies

Drain flies are a bothersome problem that can be controlled and eliminated if you know what you’re doing. Drain flies are an annoying problem that can be controlled and eliminated if you know what you’re doing. Drains provide a breeding ground for them, and they feed on the slimy detritus that accumulates in the drains. We have some suggestions for inspecting them to see if they are drain flies. Lastly, we discuss proper drain fly control treatment plans that you can perform yourself. “Drain Flies” is not a specific species of fly, but rather a term that refers to several different types of small flies and gnats, including moth flies, phorid flies, sphaerocerid flies, and occasionally fungus gnats, that are frequently found in drains and other wet slimy places where they can lay their eggs.

In addition, fruit flies will typically have red eyes, which may be used to identify them from drain flies in a hurry.

Get Rid of Drain Flies |Drain Fly Control Tips

Unless you are certain it is coming from the drains, don’t think it is a little fly or gnat-type insect fluttering around in your kitchen. For identification purposes, look for any probable breeding supplies (small puddles, oil, decomposing organic debris, etc.) that may have been overlooked. If rats are breeding in the drains, using a sanitation drain solution such as Invade Bio Drain will aid in destroying the breeding environment. It is vital to examine for breeding places and eliminate them if they are discovered.

The elimination of the breeding place is a critical component of any drain fly management approach. Floor drains should be cleaned on a regular basis. Invade Bioproducts should be used to consume the organic debris that the flies are breeding in.

Detect the Breeding Source

Identifying and managing fly infestations will be easier if you are familiar with the different breeding sites for the flies. Drain flies, fruit flies, phorid flies, and sphaerocerid flies are all known to breed in certain locations.

  • Drain flies: Drain flies reproduce in drains, sewers, septic tanks, and soil that has been contaminated with sewage
  • They are also known as sewage flies. Fruit flies: Fruit flies can be found in the vicinity of fresh fruits and vegetables, decaying fruits and vegetables, drains, rubbish, and other moist organic materials
  • They can also be found in the vicinity of rotting fruits and vegetables. Phorid Flies: Phorid Flies may be found in sewage-contaminated soil, waste, drains, human corpses, decaying vegetables and fruit, garbage, and other wet organic items
  • They can also be found in sewage-contaminated soil. In manure, wet organic debris, sewers, decaying fruits and vegetables, and rubbish, Sphaerocerid Flies can be found
  • They are a kind of fly.

Drain Fly Identification and Inspection

  • In addition to having two pairs of wings and antennae, Drain Flies are also characterized by having six legs. Adults are around 1/16th inch in length. The hue of the body can range from tan to a light gray shade. A thick covering of long hairs covers the whole body and wings of the creature, giving the creature a fuzzy look. When in repose, the wings fold over the body and are kept in place like a canopy over the body. Swatted or crushed drain or moth flies will turn into fine dust as a result of their wings becoming fine dust. If they are disturbed, they will hop or fly a short distance to get away. Drain fly larvae are around 3/8″ long, wormlike in appearance, and lack legs. The larvae are gray in hue, with deeper colors on the tips of their bodies.

Inspection-Drain Fly Breeding Sites

  • Drain flies are often seen breeding in drains, which is why they are known as drain flies. These drains are a great spot to start the inspection because they are easily accessible. They frequently deposit their eggs near the drain outlets. They subsist on detritus, which appears as a sticky, humid film on the drain sides and in the drain trap, which they feed on. If you scrape the walls of the container with anything sharp like a knife, you may look for living larvae in the sludge. The larvae have a slimy appearance. If you are unable to detect any of these tube-like drain fly larvae, it is possible that the eggs are located deeper within the pipes. Place a piece of tape (duct or transparent tape) over the top of the drain, with holes cut into it to allow for ventilation. Leave it for the night. The presence of drain flies is indicated by the fact that the flies become entangled in the tape as they depart the drain. To gain a complete picture of your infestation, you may need to repeat the process the next night as well.

More Drain Fly Inspection Tips

  • Drain flies are often seen breeding in drains, which is why they are known as drain flies. These drains are a great spot to start the inspection because they are easily accessible. They subsist on detritus, which appears as a sticky, humid film on the drain sides and in the drain trap, which they feed on. If you scrape the sides with something sharp, such as a knife, you may look for living larvae in the sludge. Make small holes in some tape and place it over the top of the drain to allow for ventilation. The presence of drain flies is indicated by the fact that the drain flies become trapped on the tape as they depart the drain. It is possible for drain flies (moth flies) to enter through a damaged drainpipe in the subfloor of a slab floor. They would establish a breeding ground in the organic waste beneath the slab. Adult flies then enter the living space above the slab through fractures in the slab and then return to the slab through the drain pipe, creating a vicious cycle. Place the masking tape over the crack in the slab as indicated above to see if they are coming up through the slab. Condensation pipes for air conditioners and icemakers should be inspected. Examine any loose ceramic floor tiles that may have accumulated water. A hole must be cut through a slab if it is suspected that drain flies are breeding beneath it. This will allow you to determine whether a pipe has ruptured and flies are breeding there. After a hole has been cut through the slab, it is necessary to delve into the dirt beneath the slab and investigate it. Organic waste and damp soil may be found several inches below the surface of the water. The presence of fly larvae and adults at the location suggests that it is a breeding source for the insects. In most cases, sump pump pits and sewers are located in the basement area and serve as excellent breeding grounds for drain flies (moth flies), which are particularly prevalent in commercial structures. Even if the sewers and pump pits are not in the immediate vicinity of where the moth flies have been observed flying, they should be examined for activity. Additionally, check the pits of elevators in business buildings for any signs of excess water or humidity. Drain flies are most commonly seen reproducing in bathroom drains, particularly those in showers, in residential settings. Weeping shower pans create an ideal breeding ground for moth flies, and the space beneath the pan becomes a breeding ground for them. Dispose away any biological waste that has been trapped in small gaps and crevices under the legs and around the bottom edges of kitchen appliances. Removal of the debris, thorough drying, and application of a long-lasting caulk to seal the crack are all necessary steps. If you suspect that the shower is a cause of the problem, you may need to drill a hole into the area beneath the shower pan or into the wall behind the shower to locate the source. In the majority of situations when moth flies are reproducing in this region, adult flies will emerge from the hole within minutes of the hole being opened. In addition, drain flies are greatly drawn to light and will flock to the hole that has been bored through the wall. Inspect crawlspaces for leaks in the drainpipe
  • If a breeding source is discovered there, the drainpipe should be repaired. Look for the presence of adult flies in your environment. It is possible that spiders have dead moth flies in their webs. Once a breeding source has been identified, the search should not be stopped. In the vast majority of situations, several breeding sources will be present
  • In regions with abundant organic material, such as sink drains, damp mops, sewage treatment facilities, storm drains, manure, and rotting plants, drain flies (also known as moth flies) can be found in large numbers. Re-grouting tiles to prevent water seepage into walls will inhibit the growth of bacteria in these locations. It is necessary to eradicate the source if it is discovered in rotting vegetable debris
  • Clean unclean garbage cans, moist lint beneath the washing machine, and even standing water in containers under houseplant pots are all things you should avoid. Adult flies migrate with the wind, so look for air conditioners, birdbaths, small stagnant pools of water, and sewage treatment facilities outside the property that are upwind. It is also possible for drain flies to reproduce under potted plants in damp, shaded spots such as under bird feeders and mosses bathes, clogged roof gutters, behind air conditioners or under dense mulch, or on wet ground regions. Moth fly larvae feed on the rotting remains of plants and animals in their natural environment. Moth flies are generally considered harmless to humans, yet they have the potential to spread germs and other microbes from their nesting grounds to locations where people congregate. Moth flies are not aggressive and do not bite. Adults have a lifespan of around two weeks.

Drain Fly Treatment Tools: Sanitation Treatment Products, Pyrethrin Aerosols, and Fly Lights

Drains should be treated with Invade Bio Products. It is recommended that you use a drain treatment such as Invade Bio-Gel Treatment to eliminate the organic material, which will improve cleanliness. Invade Hot Spot is a Microbial/Citrus Foam that comes in a convenient 16 oz aerosol can. Using the same high-quality microorganisms and chemicals as InVade Bio Foam, Hot Spot may be applied directly to the affected area in an aerosol can. The 360-degree valve enables for foam to be dispensed in any angle, making it easier to reach difficult-to-reach locations.

  • This means that removing contaminated soil from beneath a slab of concrete and replacing it is the only option to completely eliminate the infestation.
  • Drilling and treating the contaminated soil beneath the slab with residual pesticides does not work, despite the fact that it is time-consuming and expensive.
  • Removal of the debris, thorough drying, and application of a long-lasting sealant to seal the crack are all required.
  • It is a concentrated bio liquid that has been foamed with the help of a foamer.
  • This can be used as a component of an integrated pest control strategy.
  • Use a B G VersaFoamer HHor sprayer to apply to cracks, crevices, and drains where tiny flies breed in order to prevent them from reproducing.
  • Invade Bio Foam is ultra-concentrated and should be blended with water at a rate of 4 oz per gallon (1 oz per quart) before being applied with Foam Sprayers.

If adults do not disappear within a week further treatments or looking for other breeding sources is needed.

It is not possible to eliminate the buildup in which the flies lay their eggs by pouring bleach down a drain, and it may even cause harm to your plumbing. Invade Bio Drain is a useful tool.

See also:  How To Tell If My Neighbor'S Septic Tank Is Leaking? (Correct answer)

Prevent Moth Flies

Moth fly larvae require moisture in order to thrive, thus they may be found almost anyplace that water collects. In toilet bowls and tanks that are not used on a regular basis, a thin slime layer can form along the water surface. Fly larvae are frequently seen in these types of habitats. Besides basement and garage sink and floor drains, the larvae can also be discovered in condensation drop pans under refrigerators and in sink or floor drains in basements. Keep an eye out for the little, gray larvae that are squirming in the water.

Some locations may be quite simple to clean using conventional approaches.

Because the fly larvae are so little and easy to ignore, it can be difficult to locate and identify breeding places.

It is possible to invert clear plastic cups with a very little coating of vegetable oil or petroleum jelly inside the cup for several days over drains in order to collect emerging adults and locate breeding places.

It is also possible to apply transparent tape over the drain and observe if any flies can be detected adhered to the tape as an alternative technique. If these examination approaches do not provide results, then the search should be broadened.

Drain Fly Biology and Habits

Drain flies (moth flies) go through a complete metamorphosis in order to mature. The duration of the complete life cycle is between 8 and 24 days. Moth flies (also known as Drain Flies) deposit their eggs in a mass of 30 to 100 eggs in an appropriate medium. These eggs hatch in less than 48 hours, according to the manufacturer. When the moth fly (drain fly) lays its eggs, they form irregular masses in locations like filthy garbage disposal units, water traps in plumbing fixtures, sewage plant filters, and nearly everywhere else where decomposing organic materials are present.

  • The larvae consume silt, rotting vegetation, and tiny plants and animals as well as a variety of other foods.
  • The pupal stage lasts somewhere between 20 and 40 hours.
  • Due to the weak flying ability of the moth fly (drain fly), it is frequently observed strolling or jogging on walls and other resting surfaces.
  • During the day, the moth fly (drain fly) adult rests in shady locations or on walls near plumbing fixtures, such as the sides of tubs and showers.
  • The moth fly (drain fly) is most active in the evening, when the temperature is cooler.

How to Get Rid of Bugs in the Septic Tank

It is possible for insects to breed within a sewage tank. It is common for homeowners to overlook their septic system until something goes wrong, at which point it is typically too late for a simple fix. Septic systems are dark, wet places where helpful bacteria thrive, but they may also serve as a breeding ground for worms and insects that can find their way into your home down the drains and into your plumbing. The activities a homeowner may take to prevent insects from entering the home and to get rid of them in the septic tank are described below.

Step 1

Pour bleach down each drain in the house, as this will destroy any eggs or larvae that may have gotten into the drain. Pour water down the drain to flush away the bleach and flush any larvae or eggs that have been dislodged into the septic tank.

Step 2

In order to prevent insects such as flies and mosquitoes from entering the drain pipe and finding their way to the septic tank, drain covers should be placed over all of the drains in the residence. In addition, insects are prevented from finding their way out of the pipe and into the house as a result of this.

Step 3

Request suggestions from your local health agency for a licensed liquid waste extractor or pumper. Determine whether or not you have access to the septic tank from the ground level. Connect a hose to the pump and turn it on. Incorporate the hose into the septic tank through the access port on the side. Using another hose, connect it to the other end of the pump and run it to the waste removal vehicle.

Start the pump by pressing the button. Remove the septic water by pumping it out. This eliminates a large number of insects, eggs, and larvae from the septic tank’s collection system. In most cases, a qualified pumper will bring his own hose and pump equipment.

Step 4

Remove the two to three inches of sludge and silt from the bottom of the tank by liquefying it and dislodging it with high-pressure water. Many of the worms and other burrowing insects will be able to make their homes in this area. Continue to pump out the remaining liquid until the tank is completely emptied.


Don’t ever flush pesticides or other toxins down the toilet or down the sink. It is possible that the tank will leak, contaminating the ground water and perhaps killing the beneficial bacteria that aid in the decomposition of waste. Call a qualified liquid waste remover or septic pumper if you have any questions about your waste. Never pump wastewater into the earth, since this is a hazardous to both the environment and your health.

Drain Flies in Septic Tanks

Having discovered that you have drain flies in your septic tank should not have come as a huge surprise. Indeed, one of the more frequent names for Psychodidae is sewer flies, which is a term that many people are familiar with (or gnats). Septic tanks, along with drainpipes, are two of their favorite urban dwelling sites they’ve ever encountered. It is their manner of life that is the cause of drain flies in your septic tank, if you are wondering why you have them in your tank. Sewer gnats spend their whole lives in highly moist and humid environments, where they feed on a wide variety of organic materials and waste buildups of all kinds.

Additionally, they reproduce in places where the larvae have the highest chance of surviving, such as the thin jellylike coatings that may be seen in septic tank field lines or in sewage treatment plants.

Every now and then, they emerge from their breeding locations for a short period of time (usually at night), but the majority of the time, they spend their days within the pipes and tanks, where they have access to water and food.

It works great!

Are Drain Flies Good for Septic Tanks?

Drain flies, on the other hand, are not considered dangerous to humans because they do not bite frequently. Another advantage of having a healthy and moderate number of flies is that they feed on the organic materials that people produce, which helps to keep the tank cleaner. But how do you keep the right number of flies under control without allowing them to reproduce in such large numbers that you end up with a serious infestation? If this problem is not addressed immediately, it has the potential to become a very expensive problem to resolve.

To say nothing of the fact that all of the bacteria they are transporting from the septic tank can end up on your indoor surfaces.

Drain flies are generally not considered a problem by most people when they are not bothering them, owing to their small size and lack of tendency to fly much (they are known to be quite the unlucky fliers, actually).

In many cases, however, failing to act on time can result in serious consequences for many families, including high-priced plumbing repair jobs and potential health risks.

How Do I Get Rid of Drain Flies in My Septic Tank?

Since they do not bite humans, drain flies are generally not considered to be a threat to human health. Another advantage of having a healthy and moderate amount of flies is that they feed on the organic waste that people produce, which helps to keep the tank cleaner. However, it is not always easy to maintain the appropriate level of fly control, especially when the population grows to the point where it becomes a severe problem. If this problem is not addressed immediately, it has the potential to escalate into a far more costly problem to rectify.

To say nothing of the fact that all of the bacteria they carry from the septic tank might end up on your indoor surfaces.

Due to the fact that they are so little and do not fly very far, drain flies are generally not a problem for most people when they are not irritating them (they are known to be quite the unlucky fliers, actually).

Frequenty Asked Questions

Drain flies are known to reside in septic tanks. Drain flies (also known as sewer flies or gnats) may live and breed in septic tanks, which is true. They can also be found in the drain pipes, sewers, and soils around your property. What is the best way to get rid of sewage flies in my septic tank? Natural cures or commercial septic tank solutions may be used to get rid of sewer flies in a septic tank, and they are both effective. Some of them are 100 percent biodegradable, which means they will not harm the ecology of your septic tank or the environment.

  1. Is it possible for gnats to originate from a septic tank?
  2. These little mammals dwell and breed in the area, and they devour organic materials as part of their diet.
  3. What is causing the gnats to come out of my drain?
  4. It is typical to see gnats and drain flies around the shower, toilet, and even the kitchen sink since these insects like areas where there is plenty of water.
  5. It works great!

The Once-a-Week, One-Minute Habit That Will Keep You Protected From Bathroom Pests

You are disgusted when you discover new bugs in your home, and your next thought is, “How can I get rid of these creatures as soon as possible?” And then something like, “How can I prevent this from occurring again?” or something along those lines. Here’s how to keep one of these little intruders, the drain fly, from taking over your house. Drain flies are found in drains, sewers, septic tanks, and soil that has been contaminated with sewage, which is suitable given their name. They feed on the organic debris that accumulates in the pipes and, if the correct combination of circumstances and opportunity are provided, they will enter your home through access points such as kitchen sinks and shower drains, among other places.

Despite the fact that they are harmless and will not bite or sting, the fact that they arrive in vast numbers can be an annoyance.

How Do You Know if You Have Drain Flies?

A minor infestation around the entry point—for example, sitting on the walls near a shower or hovering inside a sink—is the most common way to identify them. Drain flies are more likely to be found around sinks and showers that have been left idle for an extended period of time (such as after a long vacation) or that have been used extremely seldom (such as a guest bathroom). It is easy to confuse drain flies with fruit flies or gnats because they are so little. Drain flies are an eighth of an inch in length, which is the same size as a fruit fly or a gnat.

Additionally, drain flies have a furry look because they are coated with hair on their body and wings, giving them the illusion of being furry.

A drain fly infestation in your kitchen or bathroom is possible (but make sure to check for other possible causes, such as decaying fruit, which might indicate that you’re dealing with a different type of pest).

How to Get Rid of Drain Flies

In order to determine where the drain flies are entering your property, transparent packaging tape should be used to seal off any suspicious entry sites. This should prevent fresh flies from entering your home, but it will also capture any existing flies on the tape when they attempt to enter your home. With a simple fly trap, you may quickly eradicate the flies that have already entered the house: After filling a bowl or jar halfway with equal parts sugar, water, and white vinegar, stir in 5 to 10 drops of liquid dish detergent until thoroughly mixed.

Once you’ve identified the source of the drain flies’ entry, keep the access point closed with adhesive tape or a drain stopper at all times to prevent them from getting in.

Replacing the drain with hot water and repeating the procedure once or twice everyday for at least a week will ensure that the flies are no longer present.

How to Prevent Drain Flies

For this reason, the first step in preventing drain flies is to maintain drains clean and clear with proper pipe-cleaning maintenance, such as cleaning sinks and drains on a regular basis with dish soap or vinegar and extremely hot water, among other things.

The One-Minute Habit That’ll Keep Bathroom Pests Away

Aside from cleaning your drains on a regular basis, the most important thing you can do to avoid a drain fly infestation is to make sure that there is no stagnant water lingering in your pipes. It may be found in the curves of pipes that are rarely utilized, such as the half bath in the guest room that is rarely used. Simply running the water in infrequently used showers or drains for approximately a minute once or twice a week may significantly reduce the impact of stagnant water on the environment.

Do not use bleach.

Drain flies are difficult to identify and deal with, but with proper prevention measures and a little luck, you’ll never have to deal with them.

When it comes to raising a family of five children, Shifrah is quickly learning how to keep her home somewhat tidy and reasonably clean while maintaining a thankful attitude and yet finding time for the people who mean most to her.

In addition to her twenty-year career in professional writing, she enjoys lifestyle photography as well as memory-keeping activities like as gardening, reading, and traveling to the beach with her husband and children.

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