How to Clean a Blocked Stormwater Drain: A Step-by-Step Guide for Homeowners

Blocked stormwater drains are more than just a backyard nuisance. Left unattended, they can lead to foundation damage, landscaping issues, and costly repairs. At Dial Up Plumbing, we’ve seen how simple maintenance can prevent these expensive problems. Here’s your complete guide to identifying, clearing, and preventing stormwater drain blockages.

Warning Signs of a Blocked Drain

Catching drainage issues early can save you from expensive water damage and foundation problems. Stormwater drains often show clear signs of distress before complete blockage occurs. Learning to recognise these indicators helps you address problems before they escalate:

• Water pooling around drain areas after minor rainfall.
• Slow drainage that worsens over time.
• Unusual gurgling sounds from drain points.
• Visible debris accumulation around grates.
• Unexplained damp patches in your yard.
• Watermarks or dampness on external walls.

Regular inspection of these signs, particularly after rain, can help you maintain a healthy drainage system.

We have witnessed pipe relining emerge as a game-changer in modern plumbing in recent years. But how exactly does pipe relining work, and why is it becoming the go-to method for fixing pipes? 

Read on as we walk you through the entire process, its benefits and why you should consider it for your next plumbing issue. 

Essential Tools for DIY Drain Clearing

Pipe relining is a trenchless technology used to repair cracked, broken or leaking pipes without having to dig up and replace the existing pipework.

Unlike traditional excavation, which requires digging

Before attempting any cleaning, ensure you have a complete toolkit that prioritises both effectiveness and safety. Most of these items are available at local hardware stores and serve as a long-term investment in your property’s maintenance:

• Garden hose with adjustable nozzle for controlled water pressure cleaning.
• Drain rod or plumber’s snake to dislodge and break up stubborn blockages.
• Heavy-duty protective gloves to guard against harmful bacteria and sharp debris.
• Safety goggles and face mask to protect from splashback and harmful particles.
• Collection bucket for removing and disposing of waste material.
• Leaf scoop or trowel for effective surface debris removal.
• High-pressure water jet (optional) for thorough cleaning.
• Drainage inspection camera (optional) for identifying deep blockages.

Consider this toolkit an essential investment – proper tools make the job easier and ensure you can address blockages safely and effectively.

Understanding Drain Blockages

Common debris isn’t the only culprit behind blocked stormwater drains. Years of experience at Dial Up Plumbing have shown us that blockages often result from a combination of factors. Understanding these causes helps you both prevent and address issues more effectively:

Natural Causes:

• Leaf and twig accumulation from overhanging trees.
• Soil erosion and sediment buildup during heavy rains.
• Root intrusion from nearby trees seeking water.
• Moss and algae growth in consistently damp areas.

Human Factors:

• Grass clippings left from mowing.
• Improper disposal of garden waste.
• Construction debris or sand.
• Accumulated street litter.
• Incorrect installation or repair of drainage systems.

Step-by-Step Clearing Process

A methodical approach to drain cleaning ensures better results and prevents accidental damage to your drainage system. At Dial Up Plumbing, we recommend following a systematic process that starts with assessment and ends with thorough testing:

Initial Assessment

Before picking up any tools, take time to understand your drain’s layout and condition. Walk your property and:

• Map out all drain locations and their connections.
• Note areas of visible water pooling.
• Check for damaged or misaligned grates.
• Identify potential access points for cleaning.
• Document any unusual smells or sounds.

Surface Cleaning

Start with the most visible part of the problem. A thorough surface clean often resolves minor blockages and provides better access to deeper clogs:

• Remove drain grates carefully to avoid damage.
• Clear leaves, twigs, and debris from the grate surface.
• Inspect grates for cracks or damage that might allow debris entry.
• Clean the immediate surrounding area to prevent debris from washing back in.
• Photograph any damage for future reference.

Testing Water Flow

After cleaning, we insert a specially designed liner coated with an epoxy resin into the damaged section of the pipe. The liner is flexible and can easily navigate bends and curves in the existing pipe system. We then inflate the liner, pressing the epoxy resin firmly against the inner walls of the existing pipe.

• Run water at moderate pressure to observe flow patterns.
• Note any backup points or slow drainage areas.
• Listen for unusual sounds that might indicate partial blockages.
• Check connected drains for related issues.
• Monitor water dispersal patterns in your yard.

Clearing Methods

With the liner in place, the resin needs time to cure and harden. Depending on the type of resin we use, this process can take A systematic approach to clearing blockages ensures the best results. From our experience at Dial Up Plumbing, starting with gentle methods and progressing as needed prevents drain damage and resolves most clogs effectively.

Solving Minor Blockages: 

• Start with moderate water pressure to avoid system stress.
• Direct water flows strategically along drain walls.
• Maintain consistent pressure to push debris through.
• Clear surfacing debris immediately as it appears.
• Run water for several minutes to confirm clear flow.
• Listen for normal drainage sounds without gurgling.
• Check connected drains for improved performance.

Solving Stubborn Blockages:

• Insert a drain rod or plumber’s snake with controlled pressure.
• Use steady, rotating movements to break through clogs.
• Remove dislodged debris regularly during the process.
• Flush system between attempts to assess progress.
• Watch for improved water flow and drainage speed.
• Monitor for any unusual sounds during clearing.
• Test drainage during or after rain for effectiveness.

When Do You Need Professional Intervention? 

Even with regular maintenance, some drainage issues require specialised expertise and equipment. At Dial Up Plumbing, we encounter certain situations where professional intervention becomes essential for long-term solutions.

Complex Drainage Issues

Some problems indicate deeper system troubles that DIY methods can’t address. Watch for these warning signs:

Physical Indicators:

• Recurring blockages despite regular cleaning.
• Multiple drains are backing up simultaneously.
• Sunken or cracked areas around drains.
• Persistent sewage odours from drain points.
• Flooding during light rainfall.

System Problems:

• Tree root infiltration into pipes.
• Pipe collapse or misalignment.
• Severe sediment buildup.
• Structural damage to drain components.
• Improper initial installation issues.

Other reasons to call Professional

Our team brings specialised equipment and expertise to resolve complex drainage problems effectively:

Advanced Equipment:

• CCTV drain cameras for accurate diagnosis
• High-pressure water jetters for thorough cleaning
• Root-cutting tools for invasive growth
• Pipe relining equipment for structural repairs
• Professional-grade drain snakes for deep blockages

Expert Services:

• Comprehensive system inspections.
• Accurate problem diagnosis.
• Long-term solution planning.
• Preventive maintenance programs.
• Emergency response services.

Prevention Strategies

Preventing drain blockages is more cost-effective than dealing with emergencies. At Dial Up Plumbing, we’ve found that regular maintenance and smart property management significantly reduce drainage issues.

Regular Maintenance

A consistent maintenance schedule keeps your drainage system functioning optimally throughout the year:

Routine Tasks:

• Clear grates of leaves and debris each week to prevent buildup.
• Conduct thorough inspections of drain points every month.
• Deep clean gutters and downpipes at least every three months.
• Examine the entire system before storm season begins.
• Book a professional inspection once yearly for preventive care.

Monitoring Practices:

• Run water through drains after rain to ensure proper flow.
• Pay attention to drainage sounds that might indicate problems.
• Look for water pooling in unusual areas around your property.
• Map your yard’s drainage patterns during different seasons.
• Document changes in drainage performance over time.

Landscaping Considerations

Smart landscaping choices play a crucial role in preventing drain blockages:

Garden Management:

• Position new trees at least 3 meters from drain lines.
• Set up sturdy root barriers around existing problem trees.
• Spread mulch evenly while keeping it away from drain edges.
• Choose ground cover plants that prevent soil erosion.
• Maintain proper yard slope for effective water runoff.

Preventive Measures:

• Install mesh gutter guards that match your roof type.
• Build raised garden beds that direct water away from foundations.
• Replace solid surfaces with permeable paving where possible.
• Maintain healthy grass strips along drainage areas.
• Align downpipes to work with natural ground slopes.

Making Smart Drainage Decisions

A well-maintained stormwater drainage system safeguards your property from water damage and costly repairs. At Dial Up Plumbing, we encourage homeowners to take proactive steps in drain maintenance while knowing when to seek professional help.

Whether you’re handling routine maintenance or facing unexpected blockages, our team at Dial Up Plumbing stands ready to support your drainage needs. Remember, investing time in prevention today saves both money and stress tomorrow.

Need expert advice or assistance? Contact our experienced team for a thorough assessment of your stormwater drainage system.