Date Published: March 13, 2026, Last Updated on March 26, 2026 by Brian Doherty
Blocked drains are one of the most common plumbing issues in homes across Burwood and Melbourne’s eastern suburbs. A slow kitchen sink, a clogged shower drain, or water backing up in multiple fixtures can quickly become frustrating.
In this blog, our plumbers in Burwood explain what you can safely try before calling a blocked drain plumber, and when the issue may require professional attention.
If you are unsure or want trusted advice from a licensed plumber, call Doherty Plumbing on 03 9877 5775 or submit an enquiry to get your drains checked.
Start by identifying the type of blockage
Some are minor and close to the surface, while others affect deeper parts of your plumbing system.
Common causes include:
- Grease buildup in the kitchen sink
- Hair and soap scum in a shower drain
- Food waste or debris trapped in pipes
- Foreign objects flushed or washed down
- Tree roots entering underground pipes
If more than one fixture is affected, such as both the shower and toilet, the issue may be further down the line and more likely to require professional equipment.
Safe DIY methods you can try first
There are a few simple DIY methods that can help with minor drain blockages. These are safe to try and can often restore flow if the problem is near the drain opening.
1. Use a drain cleaning stick
A plastic drain cleaning stick is useful for removing hair and debris from bathroom drains. Insert it gently into the drain and pull out any material caught near the surface.
This works well for clogged drains in sinks and showers.
2. Flush with hot water
For grease buildup in a kitchen sink, flushing with hot water can help soften and move light residue.
This is most effective when the blockage is minor and has not fully hardened inside the pipe.
3. Try baking soda and vinegar
A combination of baking soda and vinegar can help break down light organic material. It creates a mild reaction that may loosen small blockages without damaging your plumbing system.
This method is useful as part of regular maintenance and for preventing future issues.
4. Check the trap under the sink
In some cases, the blockage may be located in the trap beneath the sink. Carefully removing and cleaning the trap can clear built-up debris.
Always ensure the water is turned off and a bucket is placed under the drain pipe when disconnecting, as well as towels to protect cabinetry.
Common mistakes to avoid when trying to clear a drain
While some DIY methods are safe, others can cause more harm than good. Many blocked drains start with everyday habits, especially in the kitchen, where grease, food scraps, and other items that should never go down the drains slowly build up inside the pipework.
Another common mistake is reaching for chemical drain cleaners too quickly. These products may seem like an easy fix, but they are not suitable for every blockage.
In some cases, they can damage older pipes, weaken seals, or sit in the drain without properly clearing the obstruction, which is why plumbers don’t recommend relying on them.
Other mistakes to avoid when trying to clear a blocked drain
Pouring repeated doses of chemical products into the same drain
Using the same product repeatedly will not always improve the result. If the blockage is solid, deep in the line, or caused by tree roots, repeated use of chemical products may just leave corrosive residue sitting in the pipe. This can increase the risk of pipe damage without actually clearing the blockage.
Using too much force with tools that are not designed for drain cleaning
Pushing hard with makeshift tools can do more harm than good. It may force the blockage further down, damage pipe joints, or scratch internal surfaces. This is especially risky in older plumbing systems where the pipework may already be worn or brittle.
Flushing or running water repeatedly when the drain is fully blocked
If water is not moving at all, continuing to run taps or flush fixtures can quickly lead to overflow. This may cause water damage around sinks, showers, floor wastes, or toilets. Once a drain is fully blocked, it is better to stop adding water and assess the situation before it gets worse.
Ignoring early warning signs like slow drainage, gurgling, or bad smells
Small warning signs often appear before a drain stops working completely. Slow drainage, gurgling noises, and unpleasant smells can point to grease buildup, soap scum, or a blockage forming deeper in the line. Acting early gives you a better chance of resolving the issue before it becomes more serious.
Mixing different cleaning products
This is one of the most dangerous mistakes homeowners can make. Different cleaning products can react with each other and create fumes, heat, or splashing that puts people and plumbing at risk. This is especially important with chemical drain cleaners, which should never be mixed with any other product.
If a blockage does not improve after a few safe basic steps, continuing to try different DIY methods can make the problem worse and increase the risk of pipe damage or water damage.
When DIY methods are not enough
There are clear signs that a blockage requires professional attention:
- Water is not draining at all
- Multiple fixtures are affected
- The blockage keeps returning
- You notice strong sewer smells
- There are signs of water damage around the drains
- You suspect tree roots may be affecting the drain line
In these situations, DIY methods are unlikely to resolve the issue and may worsen it.
How do plumbers clear blocked drains?
Professional plumbers use mechanical methods to safely and effectively clear drain blockages.
This typically includes:
- Drain machines fitted with a snake and cutting attachments
- CCTV inspections when necessary for recurring issues
- Targeted repairs if damaged pipe sections are identified
Unlike DIY methods, these approaches remove the cause of the blockage rather than just treating the symptoms.
Preventing future drain blockages
Once your drains are clear, prevention becomes important.
Simple habits can reduce the risk of future issues:
- Avoid pouring grease or oil down the sink
- Use strainers in sinks and shower drains
- Dispose of food waste properly
- Avoid flushing wipes or hygiene products
- Schedule regular maintenance if your home has older pipes
Many blockages build up slowly over time, so small changes can make a big difference.
Need help with a blocked drain?
Book a trusted local plumber today
If your drain is still blocked or the issue keeps returning, it is time to speak with a professional plumber.
DIY methods can help in some situations, but persistent or severe blockages require the right equipment and experience.Call 03 9877 5775 or submit an enquiry to book a professional drain inspection and get your plumbing system back to normal.
