Picture the scene: it’s a rainy day, and you notice that the water outside your house isn't draining away as it should. Instead, it’s pooling, and there's an unpleasant odour in the air. You've encountered the annoying and potentially damaging problem of a blocked external drain. It’s a common issue that can cause a lot of headaches, but understanding what causes it, how to tackle it, and how to prevent future occurrences can save you time and money.
External drain blockages can occur for various reasons, and the consequences can range from minor inconvenience to significant property damage. In this post, I'll guide you through the causes, signs, DIY fixes, and when it's time to call in a professional. Plus, I'll provide you with some long-term strategies to keep your drainage system running smoothly.
Understanding External Drain Blockages
External drains are designed to channel away excess water from your property. They handle everything from rainfall and garden runoff to water from kitchen and bathroom outlets. When they become blocked, the flow of water is disrupted, leading to backups and overflows.
Common Causes of Blockages:
Blockages typically occur due to the buildup of leaves, dirt, and debris washed into the drains, or from roots growing into and obstructing the pipes. Alternatively, they can be the result of a buildup of grease and fat that has been improperly disposed of down kitchen sinks.
Recognising the Signs:
Key indicators of a blocked external drain include water pooling around drain covers, a noticeable drop in the speed at which water drains away, and bad smells emanating from drain areas. In more severe cases, you might notice damp or water ingress in your basement or lower floors.
DIY Unblocking Techniques
If you suspect a blocked external drain, there are several steps you can take to try and clear it yourself before calling in a professional:
1. Visual Inspection: Start by taking a look in the drain itself. Often, the cause of the blockage is immediately obvious and can be reached. Always wear gloves for this task to protect your hands from contaminants.
2. Manual Removal: If you can see and reach the blockage, try to remove it manually. This could involve pulling out leaves, mud, or other debris. A drain rod can help with this, but be careful not to push the blockage further down.
3. Use a Plunger: For smaller blockages, a standard drain plunger can sometimes do the job. Ensure there's enough water over the drain to form a seal around the plunger and pump vigorously.
4. Garden Hose Pressure: Sometimes, directing a strong stream of water into the drain using a garden hose can push the blockage through. However, be cautious with this technique as it can also compact the blockage, making it harder to remove.
When to Call a Professional
While it’s good to tackle what you can on your own, some situations definitely call for professional involvement:
Extensive Blockages: If your attempts at clearing the blockage haven't worked, or if it recurs regularly, there's likely a more significant issue at play. This could be as severe as a collapsed pipe or root ingress from trees.
Water Contamination Risk: If there’s any risk of sewage or contaminated water pooling, it’s imperative to call in experts who can safely handle and resolve the issue.
Inspections and Repairs: Professionals can also conduct CCTV surveys of your drains. This is invaluable for identifying underlying problems that aren't immediately apparent. Further, if there's damage to your drain pipes, professional repair is non-negotiable.
Preventive Measures for the Future
Implementing a few preventive measures can drastically reduce the likelihood of future drain blockages:
Regular Cleaning: Ensure drains are regularly cleared of leaves, twigs, and debris, especially after bad weather.
Correct Waste Disposal: Never pour fats, oils, or grease down your drains. Once cooled, collect them in containers and dispose of them with regular waste.
Drain Guards: Installing drain guards can help catch debris before it enters your drainage system.
Regular Inspections: Have a professional inspect your drainage system periodically to identify any potential issues early on.
Conclusion
Blocks in your external drains don't have to be a disaster. By understanding what causes them, recognising the signs, and knowing a few handy techniques, you can often resolve simple issues yourself. For more complicated problems, don’t hesitate to contact a professional. It’s not just about managing issues as they arise; being proactive and preventative can save a great deal of trouble down the line. Remember, the health of your drains plays a crucial role in maintaining the health of your home.
