Is your outside drain blocked and causing standing water or a foul smell near your property?
It’s a common issue that can cause a significant inconvenience, especially if left unresolved. Not only is it frustrating, but you also risk further damage to your pipes if the blockage isn’t addressed properly.
Fortunately, with the right tools and techniques, you can clear a blocked outside drain without causing any harm to your drainage system.
In this article, we’ll walk you through a variety of methods to help you unblock a drain outside effectively, without damaging your pipes. Whether it’s a minor block or a more severe blockage, we have solutions that can be safely implemented by homeowners.
From manual cleaning to using drain rods and natural solutions, you’ll learn how to clear your drains without costly professional intervention.
Common Types of Outside Drain Blockages
Outside drain blockages are often caused by leaves, branches, soil, and debris, with additional culprits like grease or non-degradable items that block pipes and restrict water flow.
Blocked External Drain
A blocked external drain can occur for a variety of reasons, such as leaves, debris, or even dirt that accumulates over time. This is the most common blockage homeowners face, especially after a storm or in autumn.
Blocked Outside Kitchen Drain
The blocked outside kitchen drain is a common issue, often caused by grease, food waste, or soap buildup. These can solidify and obstruct the drain, making it difficult for water to flow properly.
Smelly Drains Outside
If your outdoor drains are producing unpleasant odours, it’s a clear sign that there is a blockage. Stagnant water, decomposing organic matter, or rotting food can cause these foul smells.
Outside Drain Overflowing
An outside drain overflowing is a telltale sign that there’s a significant blockage. Water may spill out onto your yard, driveway, or street, causing further mess and potential water damage.
What Causes Blocked Outside Drains?
Blocked outside drains are often caused by debris buildup like leaves, branches, and soil, along with grease, fat, and foreign objects flushed down, which can all restrict water flow and lead to blocks.
Leaves and Branches
A common culprit for blocked outside drains is leaves and branches, especially during fall or after storms. They can easily block the drain, preventing water from flowing freely.
Soil and Mud
Heavy rain can wash soil and mud into your outdoor drains, which can lead to blockages. Over time, this sediment accumulates, reducing the diameter of the pipes and restricting the flow of water.
Moss and Litter
Moss, algae, and litter can also cause blockages in outdoor drains. As they build up in the pipes, they may create a stubborn block that is difficult to remove without the right tools.
Pouring Fat, Oil, or Coffee Grounds Down the Sink
Another common cause of blocked outside drain issues is pouring fats, oils, or coffee grounds down the kitchen sink. These substances solidify in the pipes, causing blockages and potential damage to your drainage system.
Who is Responsible for Blocked Drains Outside?
Generally, homeowners are responsible for maintaining and clearing blocked drains outside that occur on their property. If the blockage is caused by external debris or improperly disposed items, it falls to you to fix it.
Shared Drains and Public Responsibility
If the blocked drain pipe outside belongs to a shared or public system, responsibility may fall on the local water or sewerage company. It’s essential to contact your water supplier to confirm if the drain is shared or public.
How to Unblock a Drain Outside: DIY Fix
If you’re facing a blocked drain pipe outside, the good news is that many blockages can be cleared with a few simple DIY steps. Here’s a step-by-step guide to help you clear a blocked outside drain without causing any damage:
Preparation for Unblocking an Outside Drain
Before you begin, gather the following items:
- Rubber gloves for hygiene and protection.
- Protective clothing (old clothes, face mask, and goggles).
- Drain rods or a plunger for clearing blockages.
- Bucket or bin bags for disposing of debris.
- Pressure hose for cleaning the drain.
Steps to Unblock an Outside Drain
- Get the Drain Cover Off: Use a flat-head screwdriver or a cover lifter to remove the drain cover. If necessary, tie a rope to the cover for better leverage.
- Identify the Blockage Location: Once the cover is off, visually inspect the drain for visible debris, standing water, or any signs of a deeper blockage.
- Manual Removal of Surface Debris: Use gloved hands or a garden trowel to remove any visible debris such as leaves, dirt, or other blockages at the surface.
- Use a Plunger for Minor Blocks: Place the plunger over the drain opening. Ensure there is enough water to cover the suction cup, and then plunge up and down rapidly to create pressure and dislodge the block.
- Try Boiling Water or Natural Solutions: Pour a bucket of boiling water down the drain to dissolve grease or soap buildup. For stubborn grease, try a mixture of baking soda and vinegar, followed by boiling water.
- Use Drain Rods for Deeper Blockages: Insert the drain rod into the pipe, rotating it clockwise to avoid unscrewing the rod inside the drain. Push and twist to break up the block.
- Pressure Wash or Hose Down: Feed a pressure hose or garden hose into the drain and blast high-pressure water to dislodge stubborn debris.
- Use Chemical Unblockers as a Last Resort: If all else fails, use a chemical unblocker. However, these should only be used sparingly as they can damage pipes and harm the environment.
Protect Yourself Against Blocked Drain Issues
To prevent future outside drain blockage issues, consider taking these preventive measures:
- Install drain guards or grates to catch leaves and debris before they enter the drain.
- Avoid pouring fats, oils, or food scraps down the sink; dispose of them in the trash.
- Regularly clean drain covers and gutters, especially after heavy rain or in autumn.
- Flush kitchen drains with hot water periodically to prevent grease buildup.
To Sum Up: Unblocking Outside Drains Without Damaging Pipes
A blocked outside drain can be a major headache, but by following the steps outlined above, you can safely unblock it without damaging your pipes.
Regular maintenance, such as cleaning drain covers and avoiding the disposal of oils and fats, can help prevent future blockages.
If you’ve tried everything and the blockage persists, don’t hesitate to contact a professional plumber to help resolve the issue and avoid causing damage to your drainage system.
FAQs
1. What can I use to unblock an outside drain pipe?
For minor blocks, try using a plunger or drain rods. For grease buildup, use boiling water or a mixture of baking soda and vinegar. For deeper blockages, consider a pressure washer.
2. What do plumbers recommend for unblocking drains?
Plumbers often recommend using drain rods or high-pressure water for stubborn blocks. They also suggest avoiding harsh chemicals, which can damage pipes over time.
3. What is the best chemical to unblock outside drains?
If necessary, use a drain unblocker specifically designed for outdoor use. However, always follow the manufacturer’s instructions, and use them sparingly to avoid damaging your pipes
