5 Common Causes of Blocked Drains and How to Prevent Them

Posted by Adelaide Blocked Drains Plumbing on 3 May 2026

Blocked drains are a hassle that could cause disruption to your daily life. They could cause flooding, bad smells and even health risks. If not promptly dealt with blocked drains can lead to serious issues in the plumbing system, leading to expensive repair or even replacement.

Key Takeaways

  • Drains that are blocked can interrupt your daily life and result in water damage, bad odours and even health hazards.
  • Grease, oil and fat build-up can clog the walls of pipes causing blockages; avoid pouring grease down the drain, or use hot water and soap while cleaning dishes.
  • Tree roots naturally extend themselves into the ground searching for nutrients. This can cause massive damage to pipes and even completely block them that can lead to flooding. Regularly maintain trees near drainage systems by pruning them.
  • Disposing of non-biodegradable materials like wet wipes, towels, etc. could cause unpleasant odors emanating around toilets/bin areas; be sure to flush toilet paper down the drain.
  • Hair

In this article, we will explore five reasons for blocked drains and ways to keep them from happening.

Cause 1: Grease, Oil and Fat buildup

Oil, grease, and fat might appear to be harmless substances to pour down the drain however, over time, they begin to accumulate in the pipes’ walls pipes causing an obstruction. In this case, water is unable to move freely through the drainpipes. The best solution is to refrain from spilling grease down the drain. Or utilize soap and hot water during cleaning dishes since it can help break down grease-based substances.

Cause 2. Tree Roots

The tree’s roots gradually extend into the ground looking for nutrients. This leads to them expanding towards underground pipes. Once inside the pipes, tree roots could cause significant damage and may completely stop them from flowing, causing flooding. It is therefore essential if you have trees around to maintain the growth of your trees around drainage systems by pruning the trees regularly.

Cause 3: Unwanted items

It’s not difficult to conclude that flushing biodegradable products such as the wet wipes, sanitary towel and so on. will not cause any major problems over the long haul, However, if a large amount of these items go into toilets, they can accumulate pushing others aside blocking pipes – this can cause unpleasant odors to emanate around toilets/bin areas too! Make sure to remember what should be flushed away and what should not (i. e only toilet paper needs to be flushed out).

Cause 4 Cause 4: Hair

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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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 Adelaide cleared today, contact Adelaide Blocked Drains Plumbing now and speak to one of our friendly team members.

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