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April 29, 2024

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Tackling Drain Fly Problems Down Under: Effective Strategies for Australians

If you've ever dealt with drain flies in Australia, you know how pesky they can be.

Drain flies, also known as Psychodidae, sink, sewer, sewer gnats, or filter flies, are a common problem in many households and commercial buildings. These sewer flies may not directly harm humans, but their presence can quickly become annoying. 

While drain flies themselves are not a major concern, their presence can indicate the presence of unclean areas. 

This article will give you all the information and tips you need for how to get rid of drain flies in Australia.

Identifying Drain Flies

Drain flies are easily recognisable by their distinct features. They have light-coloured wings covered in scales, giving them a fuzzy appearance. Their bodies are dark grey to black and have a moth-like structure with long curved antennae.

Measuring between 5 to 10mm in length, drain flies are small but visible to the naked eye. Due to their poor flying abilities, they have a unique hopping movement and can only move a few feet at a time. When disturbed, drain flies often resort to hopping to escape.

Identifying drain flies is essential in tackling infestations as they commonly inhabit areas with stagnant water and organic matter. They are frequently found near bathroom drains and kitchen drains, as well as in floor drains and garbage bins. 

Prevention Techniques for Drain Flies in Australia

When it comes to tackling drain fly problems down under, prevention is key. To keep these sink flies at bay, you must maintain clean and clear drains through regular maintenance.

One effective technique is cleaning sinks and drains using dish soap, apple cider vinegar, and boiling water. This helps to remove any organic material that drain flies feed on, making the area less enticing for them to breed. Simply pour a cup of dish soap or white vinegar down the drain, followed by a kettle full of boiling water. This powerful combination can break down and flush away any buildup, creating a less hospitable environment for drain flies.

Elimination Techniques for Drain Flies in Australia

Drain Cleaners: One of the first steps to eliminate drain flies is to clean the bathroom and sink drains thoroughly. Using commercial drain cleaners can help break down wet matter and debris, where drain flies often breed.

To do this effectively, follow these steps:

  • Purchase a drain cleaner suitable for your plumbing system, ensuring it is safe for use with metal or PVC pipes.
  • Remove any visible debris or blockages from the drain.
  • Carefully pour the recommended amount of drain cleaner down the drain and allow it to sit for the specified time.
  • Rinse the drain with hot water to flush out the debris and dead drain flies.


  • Cost-effective and readily available in stores.
  • It can help eliminate drain fly breeding grounds.


  • Some drain cleaners contain harsh chemicals that may harm the environment and should be handled cautiously.
  • Drain cleaners may not fully eradicate drain fly populations if the breeding site is not effectively reached.

Drain Fly Traps: Drain fly traps are another popular method for controlling pests. These traps attract and capture adult drain flies, reducing their population over time.

  • Purchase commercial drain fly traps or create your own using a shallow bowl, apple cider vinegar, and a few drops of dish soap.
  • Place the trap near the infested drain or other areas where drain flies are commonly seen.
  • The vinegar and soap will attract and trap the adult flies, preventing them from laying more eggs.


  • Safe and non-toxic method.
  • Easy to set up and use.


  • Traps may not completely solve the issue without addressing the breeding sites.
  • While effective in catching adult flies, they may not prevent future infestations.

Professional Pest Control Services: If the infestation persists despite DIY methods, seeking professional pest control services is the most reliable option. Experienced pest control professionals can identify the source of the infestation and provide tailored solutions.

  • Contact a reputable pest control company and schedule an inspection.
  • The professionals will assess the extent of the infestation and identify the breeding sites.
  • They will use appropriate insecticides or biological treatments to eliminate drain flies effectively.


  • Comprehensive and efficient solution.
  • Experts can address underlying causes and prevent future infestations.


  • Professional services may be more expensive than DIY methods.
  • Depending on the extent of the infestation, multiple treatments may be required.

Precautions and Tips:

  • Always follow safety guidelines when using drain cleaners, wearing gloves and eye protection.
  • Keep drains clean by regularly flushing them with hot water and using drain screens to prevent debris buildup.
  • Dispose of garbage properly to minimise potential breeding sites.
  • Avoid overusing insecticides, especially in kitchen and food-preparation areas.
  • Consider seeking professional help if the infestation is severe or persistent.

When to Call a Professional Blocked Drain Plumber in Australia

When tackling drain fly problems Downunder, sometimes it is necessary to seek the assistance of a professional blocked drain plumber in Australia. Drain fly infestations can be a common issue in homes and businesses, especially in areas with a lot of organic matter and stagnant water.

While several DIY methods are available to try and eliminate drain flies, such as using hot water or white vinegar, the infestation can sometimes be too stubborn for these methods to work effectively. This is where a plumbing expert like Sewer Surgeon can come in handy.

Hiring a professional for drain fly infestations has several benefits.

Firstly, they have the knowledge and expertise to identify and locate the breeding areas of drain flies, which are often hidden in drain pipes or other hard-to-reach areas. They can then provide targeted and effective solutions to eliminate these breeding areas, such as jet blasting to clean sewer pipes and remove the organic material that drains flies thrive on.

A professional blocked drain plumber can also provide ongoing maintenance to ensure drain flies do not return. 

Sewer Surgeon's block drain plumbing service offers expert solutions to prevent drain fly infestations. Our experienced plumbers use advanced technology to identify and clear blockages, ensuring your drains remain clean and free from breeding sites. We provide preventative maintenance plans for long-term protection with eco-friendly methods and tailored solutions.

Choose Sewer Surgeon to keep your home drain-fly-free and your plumbing system in top condition.