5 Factors That Are Clogging Your Drains and How to Avoid Them

Posted by Melbourne Blocked Drains Plumbers on 23 Jan 2026

Blocked drains can be a frustrating problem and cause many inconveniences. Blocked drains can cause unpleasant odors, slow drainage of water, and even sewage backups. Understanding the common causes of blocked drains will help you prevent them in the first place.

Blocked drains can be caused by many reasons and, if left untreated, can cause costly damage to your home or business. Here are five common causes of blocked drains and how to prevent them:

1. Foreign objects

Blocked drains can be caused by foreign objects like hair, food particles, soap residue and paper products. These materials stick together inside pipes forming a blockage that prevents water flow.

To prevent these blockages from occurring:

  • Cooking oil should be disposed of in the trash, not the sink
  • Avoid pouring leftover food debris or coffee grounds into the sink
  • Install drain covers in sinks, bathtubs, and shower stalls to prevent hair from accumulating
  • Use minimal toilet paper when flushing

2. Tree roots

Tree roots can often be found growing toward cracked pipes and pipe joints, where they can infiltrate the pipe and eventually block it completely.

To prevent tree root intrusion:

  • Hire professionals to properly install pipes so they’re level
  • Avoid planting trees near sewer lines

3. Grease buildup

Blockages can be caused by grease buildup. Many people pour hot grease down their kitchen sink since it’s liquid form making it easily escapes from dishes but congeals quickly once it cools off deep inside your pipes causing stubborn clogs.

You can dispose of grease-laden oils and other greasy substances in your kitchen sink by emptying the trash into a garbage bin, rather than pouring it into your kitchen drainage system.

4. Structural damage

Cracked or collapsed pipes due to age, weather or changes in the soil can cause blocked drains. Signs of structural damage of pipes include:

  • Slowly draining water
  • Multiple blocked fixtures
  • Mold growth
  • Foundation cracks

To prevent structural damages:

  • Regular inspections of your sewer lines with CCTV inspections are recommended so that professional repair companies can detect and correct any problems.

5. Incorrect pipe installation

Bad pipe design or incorrect installation can cause blocked drains. It is possible for large debris to build up in unreliable areas, causing blockages.

To prevent such occurrences, hire professionals to properly install pipes and ensure the pipes meet the recommended standards for sizes and torques.

Conclusion

If left unattended, blocked drains can cause serious problems. To prevent blockages, take preventive measures such as hiring professionals to conduct regular maintenance checks and following plumbing code requirements when building. You can also place catch baskets in drain outlets or sinks to capture any debris that reaches the drainage system. Take care of your pipes today to ensure that they remain clear tomorrow and in years ahead.

Key takeaways

These are the most important things to remember after you have read this article.

  1. Blocked drains are often caused by foreign objects such as hair, soap residues, paper products, and food particles.
  2. Tree roots can grow towards water sources like cracked pipes, causing complete obstruction within the pipe.
  3. Grease buildup deep inside your pipes causes stubborn clogs leading ultimately leads to Blocked Drains.
  4. Structural damages due to cracked or collapsed pipes due to age, weather or ground shifts impairing smooth flow of water.
  5. An incorrect installation of pipes can leave tight bends that are susceptible to large debris, causing accumulation blockages. from wastes going through drainage system.
  6. Instead of waiting for an emergency, hire only certified plumbers for routine check-ups.
  7. Follow standard local plumbing codes during construction.
  8. To capture debris that does not reach the drainage system, place catch baskets on screens traps.

Additional Information

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Are you experiencing a clogged toilet, blocked shower drain, overflowing drains or an issue with your kitchen sink? We can help you sort out your drain blockage problem quickly and provide the following services:

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  • Clogged or Blocked Shower Drain

Clearing blocked drains can be difficult and it’s best to get a professional plumbing service involved to tackle it for you, To get your blocked drain in Melbourne cleared today, contact Melbourne Blocked Drains Plumbers now and speak to one of our friendly team members.

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