10 Ways You Can Clear a Blocked Drain

Blocked drains are a common plumbing issue in households across Sydney, and if left untreated, they can lead to bad smells, slow drainage, flooding, and even long-term pipe damage. While some blockages require professional plumbing support, many minor clogs can be resolved at home with the right tools and techniques. In this guide, South East Plumbing Engadine shares 10 tried-and-tested ways you can clear a blocked drain using safe, simple and affordable methods.

1. Boiling Water Flush

The first and easiest solution for any slow-draining sink or basin is boiling water. It works best for minor clogs caused by soap scum, grease or conditioner buildup.

• Boil a kettle and carefully pour it directly down the affected drain

• Wait a few minutes between each pour to allow the water to break down debris

• Repeat two or three times, then test flow with warm tap water

This method is effective for metal pipes but avoid using it on PVC where extreme heat could cause warping. For recurring sink issues, see our Leaking Taps and Toilets services.

2. Bicarb Soda and Vinegar

This natural solution is perfect for kitchen sinks, bathroom drains, and laundry tubs. It not only helps break down build-up but also neutralises bad odours.

• Pour half a cup of bicarbonate soda into the drain

• Add one cup of white vinegar

• Cover the drain and leave it to fizz for 15 minutes

• Rinse with boiling or hot water

This eco-friendly method is popular among Australian homeowners for routine drain cleaning and maintenance.

3. Plunge the Drain

A plunger is one of the most useful tools for loosening clogs caused by hair, food, or soap residue.

• For sinks, fill with water until the plunger cup is fully submerged

• Create a tight seal over the drain and plunge with strong, rhythmic motions

• For toilets, use a flange plunger to create proper suction

• Test the water flow after plunging for 20–30 seconds

For stubborn toilet blockages, see our Emergency Plumbing solutions.

4. Use a Wire Coat Hanger

For minor clogs near the surface, a straightened wire hanger works well in shower or basin drains.

• Unwind the hanger and make a small hook at one end

• Carefully feed it into the drain and rotate to catch hair or gunk

• Pull it out and dispose of debris before rinsing with hot water

If hair buildup is a recurring problem in your bathroom, learn more about our leaking taps and plumbing inspection services.

5. Apply Dish Soap and Hot Water

Great for greasy clogs in kitchen drains, especially if caused by oils or leftover cooking residue.

• Pour a generous amount of dish soap into the drain

• Let it sit for a few minutes to break down the grease

• Follow with hot water to flush away residue

Grease and fat buildup over time can signal pipe damage. Consider our Broken or Damaged Pipes service, if the issue persists.

6. Clean the U-Bend or Trap

If your kitchen or bathroom sink is completely blocked, the trap under the basin may be the issue.

• Place a bucket underneath the U-bend

• Unscrew the trap and remove any gunk inside

• Rinse thoroughly before reattaching and testing for leaks

For older homes across Sutherland Shire, U-bend cleaning is often a short-term fix. Book a drain inspection.

7. Use a Wet/Dry Vacuum

If you have access to a shop vac, this tool can be highly effective for sucking out blockages.

• Set the vacuum to liquid mode

• Create a tight seal around the drain opening

• Run the vacuum for 15–30 seconds to draw out the blockage

For hard-to-reach clogs or unknown causes, our Leak Detection and Prevention service can identify the issue without damage.

8. Salt and Baking Soda Mix

A simple, chemical-free way to dislodge small build-ups in bathroom and laundry drains.

• Mix half a cup of table salt with half a cup of bicarb soda

• Pour into the drain and leave it overnight

• Flush with boiling water in the morning

This is a great maintenance step for all homes across southern Sydney suburbs like Engadine, Miranda and Cronulla.

9. Drain Auger or Hand Snake

This flexible tool is available at most hardware stores and is ideal for clearing deeper clogs.

• Insert the auger into the drain and twist to grab or break up the clog

• Carefully retract it, then flush the drain with water

For extensive tree root damage, contact our Blocked Drains specialists for a hydro-jet or CCTV inspection.

10. Preventative Maintenance

Prevention is just as important as removal. Regular care is one of the best ways to avoid serious blockages.

• Install hair catchers in bathroom drains

• Use strainers in kitchen sinks

• Flush drains monthly with baking soda and vinegar

• Avoid disposing of grease, oil or coffee grounds in the sink

Looking for a scheduled plumbing maintenance plan? Contact SE Plumbing to discuss ongoing drain care.

When to Call SE Plumbing

Some blockages are simply too severe or too deep for household methods. Call SE Plumbing if:

• Multiple fixtures are affected at once

• You hear gurgling or notice sewage smells

• The blockage returns within days of clearing

• You suspect pipe damage, tree roots, or flooding risk

Our Emergency Plumbing service is available 24/7 to homes throughout Sutherland Shire and southern Sydney.

Why Locals Trust SE Plumbing

SE Plumbing is trusted by homeowners across Engadine, Cronulla, Sylvania, and beyond for blocked drain solutions that last. With more than 20 years of experience, we provide quick diagnostics and permanent fixes using the latest equipment.

• Fully licensed and insured plumbers

• Honest pricing and fast response

• Local knowledge of Sydney’s ageing pipe systems

• Tools like CCTV drain cameras and hydro jetters to clear any blockage

Call 0414 651 351 or book online now for expert help today.

Blocked Drain Solutions Sutherland Shire – Call SE Plumbing Today

Clearing a blocked drain at home is often easier than it seems. With these 10 methods, most minor clogs can be resolved quickly using safe, household ingredients. But when home solutions aren’t enough, SE Plumbing is ready to help with same-day service and reliable results. Don’t wait—get your drains flowing properly again with help from your local team in Sutherland Shire.