How to Clear Blocked Drains: A DIY Guide

Dealing with blocked drains is a common yet frustrating issue for many Sydney residents. Whether it’s a sink and drain problem, a blocked shower drain, or a stubborn drain blockage in your toilet, using an effective strategy can save you both time and potentially much more costly plumbing bills.

If you have a minor blocked drain, you can give one of your DIY methods a try. This is our guide to help give you what you need to know about drain blockage, how to recognise it when it happens, how to prevent and clear it, as well as when you need to give a professional a call.

Recognising the Signs

Before we dive into the solutions, it’s crucial to understand the warning signs of blocked drains. 

Identifying these signals can help you address the issue early, potentially saving your home’s plumbing system from more significant problems.

Common indicators of blocked drains include:

  • Slow Drainage: When your sinks, showers, or baths empty sluggishly and tend to overflow, it’s a clear sign that a blockage might be lurking in the pipes.
  • Foul Odors: Detecting a sewage-like smell in your kitchen or bathroom can indicate a blockage. This unpleasant odor results from food waste, toiletries, or other debris stuck in the pipes.
  • Gurgling Sounds: If you hear gurgling sounds emanating from your drains, it’s another red flag. These sounds often signify a problem that requires immediate attention.

Understanding what commonly leads to blocked drains will also help you prevent blockages from developing in future. In other cases, it will just help you remain aware of what is happening in your drain pipes.

The culprits of a blocked drain:

  • Hair and Toiletries: Hair accumulation in pipes is a prime culprit. Human and pet hair can easily find their way into showers and sinks, where they tangle with other debris, forming blockages.
  • Bathroom Debris: Wet wipes, sanitary products, and even so-called “flushable” wipes can contribute to blocked toilets because they don’t dissolve like toilet paper does. Small items can also make their way into the drain, causing further blockages.
  • Food Waste: In the kitchen, food waste can be a significant problem. Even with sink strainers in place, some food waste may escape and cause blockages. Items like tea leaves and coffee grounds are particularly resistant.
  • Congealed Fats and Oils: Pouring oils down the sink can lead to kitchen sink build-up. These substances can solidify further down the pipes, trapping other food debris. It’s crucial to avoid pouring oils down the sink.

Tree Roots: Tree roots can infiltrate pipes by finding their way into existing cracks or joins, causing significant blockages. This is especially common with older earthenware piping.

DIY Methods to Unblock Your Drain

  1. Regular Maintenance: Make it a habit to regularly pour boiling water down your drains. This is a simple step that helps dissolve grease and soap residue, stopping many potential blockages from happening in future.
  2. Natural Remedies: Before resorting to harsh chemical drain cleaners, consider these safer and environmentally friendly alternatives to clearing your drain naturally:
    1. Baking Soda and Vinegar: Follow these simple steps for a natural reaction that helps loosen blockages.
      1. Carefully pour a liter of nearly boiling water down the drain.
      2. Add half a cup of baking soda and wait for 5 minutes.
      3. Pour one cup of plain vinegar and one cup of nearly boiling water down the drain.
      4. Cover the drain if possible and let it sit for 10 minutes.
      5. Finish by flushing the drain with another liter of nearly boiling water to remove any remaining debris.
    2. Plunge Like a Pro: Small blockages, in sinks or toilets, causing sluggish drainage can often be moved with a firm plunge. When you use this tool, make sure you get a secure seal and use firm, steady plunging motions to dislodge the blockage.
      1. Fill the sink, bath, or shower base with about 10 cm of water.
      2. Cover the drain hole with the plunger, ensuring water is in the cup.
      3. Plunge firmly for approximately half a minute.
      4. After clearing the blockage, pour hot, nearly boiling water down the drain to remove any residue.
    3. Detergent and Hot Water: Everyday dishwashing detergent paired with hot water can effectively clear partially blocked drains. You may need to repeat this process for optimal results.
      1. Pour a teaspoon of standard dishwashing detergent into the drain.
      2. Follow with one to two liters of nearly boiling water.
      3. Repeat as necessary.
    4. Wire Hanger: To remove hair blockages, straighten a wire coat hanger, leaving one end curved. Insert it into the drain to fish out the hair. This method is particularly effective in showers.
    5. Drain Auger or Plumber’s Snake: If stubborn blockages persist, consider using a stainless-steel drain auger or plumber’s snake. These tools can reach deep within the pipes, even around bends, to dislodge and clear blockages.
  3. Caution with Drain Cleaners: Be cautious with commercial drain cleaning products, as they may contain corrosive chemicals. Consider safer, eco-friendly options, and always follow the product’s instructions carefully.
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How to Clear Blocked Drains: A DIY Guide

Remember Prevention is Key

Preventing blocked drains is often easier than dealing with them. Here are also some helpful preventive measures you can take to reduce the likeliness of this incident happening again:

  • Sink Strainers: Use sink or drain strainers in the kitchen to catch food waste before it enters the pipes. Empty the strainer regularly into the bin.
  • Hair Removal: In the bathroom, remove hair buildup from basins, bathtubs, and shower waste before it can move further down the pipes and become harder to remove.
  • Avoid Oily Disposal: Never pour oils down the sink, as they can congeal and lead to blockages.
  • Regular Maintenance: Consider scheduling periodic plumbing inspections to detect and address potential blockages before they escalate.

When to Call a Professional Plumber

When DIY methods fall short, especially for blocked toilets and drains that persist, it’s time to call a professional plumber. Trained plumbers, like Kalco Plumbing, have specialised tools like hydro jets and CCTV drain cameras to diagnose and solve complex drain blockages efficiently and safely. They can also handle issues like tree roots causing blockages or gurgling sounds in your pipes, which are often signs of a more severe problem.

Don’t Settle for a Blocked Drain 

Clearing blocked drains can be a manageable task with the right knowledge and tools at your disposal. However, if DIY methods fall short, don’t hesitate to seek professional assistance. Kalco Plumbing is here to provide expert solutions to your plumbing emergencies.

Our mission is to empower you with the information you need to maintain a trouble-free plumbing system. We hope this comprehensive guide equips you with valuable insights to address blocked drain issues effectively. If you have questions or require professional assistance, don’t hesitate to reach out to us. We’re dedicated to ensuring your plumbing functions seamlessly, allowing you to enjoy a blockage-free home.