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Drain Unblocker

The Top 10 Causes of Blocked Household Drains

Blocked household drains can start as minor inconveniences but quickly escalate into significant issues. At Aquablast Drain Services, we’ve encountered numerous blocked drains, and the causes are often preventable with proper maintenance. Understanding the most common culprits behind clogged drains can help you avoid costly repairs, pipe damage, and even sewage backups.


Early Signs of a Blocked Drain

Blocked drains often start with subtle signs, such as:

  • Slow Drainage: Water may begin to drain more slowly than usual.

  • Unpleasant Odors: A foul smell can emanate from sinks or drains.

  • Gurgling Sounds: Unusual sounds may be heard as water struggles to pass through a partially blocked pipe.


If you notice these early indicators, it’s crucial to act quickly before the issue worsens. Blocked drains can damage pipes, floors, and even cause raw sewage to back up into your home.



household blockages showing drain rod in pipework
household blockages


Top 10 Causes of Blocked Drains

Here’s a look at the most common reasons for household drain blockages:

1. Hair

Hair is a frequent cause of blocked drains, especially in bathrooms. Long hair tends to tangle and bind with soap residue, creating a tough clog. Hair salons and households with long-haired individuals are particularly prone to these issues.

2. Soap Scum

When soap combines with the minerals in hard water, it forms soap scum, which can cling to the inside of pipes. Over time, this buildup narrows the passageway, leading to slow drainage and eventually a blockage.

3. Mud and Dirt

Washing muddy clothes or footwear in the washing machine can send mud, grass, and dirt into your pipes. This debris can accumulate and clog the pipes, potentially damaging your washing machine and drainage system.

4. Food Waste

Food scraps are a leading cause of blocked kitchen drains. Even if you have a garbage disposal, certain foods like coffee grounds, eggshells, and grease can build up and cause blockages. Always scrape plates thoroughly before washing them.

5. Fat and Grease

When fat from cooking is poured down the sink, it cools and solidifies, forming fatbergs. These large masses block pipes and are difficult to remove. Always dispose of cooking fats and oils in the bin, not the drain.

6. Foreign Objects

Foreign objects that accidentally fall into or are flushed down the drain are a common issue. We’ve removed everything from toys and toothbrushes to mobile phones and perfume bottles from blocked drains in Bristol and Somerset.

7. Toiletries

Items like baby wipes, sanitary products, and nappies are a major cause of blocked toilets. These items do not break down like toilet paper and should always be disposed of in the bin.

8. Excessive Toilet Paper

Though toilet paper is meant to be flushed, using too much at once can create a blockage. Large wads of paper can compress and get stuck in the pipes, causing slow drainage or complete blockage.

9. Tree Roots

Tree roots are notorious for growing into underground drainage pipes in search of water. Once they infiltrate a pipe, they can cause cracks, blockages, and even collapse the drain. A CCTV drainage survey can detect tree root ingress and allow for swift action.

10. Leaves and Outdoor Debris

During autumn or after storms, leaves, branches, and other debris can be washed into outdoor drains, causing blockages. Regularly checking and clearing gutters and external drains can prevent this problem.


FAQs: Blocked Household Drains

Q: How can I prevent my drains from getting blocked?A: Prevent blockages by avoiding flushing non-biodegradable items, disposing of fats and oils in the bin, using drain guards, and regularly clearing outdoor drains of debris.

Q: What are the signs of a blocked drain?A: Common signs include slow drainage, foul odors, gurgling sounds, and water backing up in sinks or toilets.

Q: Can hair really block drains?A: Yes, hair can easily clog drains, especially in bathrooms. It binds with soap scum and other debris, forming a tough blockage.

Q: How do tree roots block drains?A: Tree roots can grow into pipes, causing cracks, blockages, or even completely collapsing the drain. A CCTV survey can identify root ingress before it causes severe damage.

Q: What should I do if my drain is blocked?A: If your drain is blocked, avoid using chemical drain cleaners and call a professional service like Aquablast Drain Services for safe and effective unblocking.


Preventing Blocked Drains: Tips

To reduce the likelihood of blocked drains, follow these steps:

  • Use Drain Covers: Install mesh covers over plugholes to catch hair and food particles.

  • Dispose of Grease Properly: Never pour grease or oil down the sink. Instead, let it solidify and throw it in the bin.

  • Scrape Plates Thoroughly: Always scrape food waste into the bin before washing dishes.

  • Regular Maintenance: Schedule regular maintenance or CCTV surveys to identify potential issues before they become major problems.

  • Clear Outdoor Drains: Check and clean outdoor drains regularly, especially after bad weather.


Why Regular Drain Maintenance is Key

Regular maintenance is the best way to avoid blocked drains and prevent costly damage to your plumbing system. By scheduling routine inspections or CCTV drain surveys, you can catch issues like root ingress, fat build-up, or debris blockages early on, ensuring your drainage system remains efficient.


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Conclusion

Blocked household drains are more than just an inconvenience—they can lead to serious plumbing issues if left untreated. By understanding the top causes of blocked drains and implementing preventive measures, you can keep your drainage system running smoothly.


Should you encounter a blockage, Aquablast Drain Services is here to help with professional unblocking services and regular drain maintenance. Contact us today to schedule an inspection or drain cleaning service.

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