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The Ultimate Guide to Preventing Pesky Blocked Drains

June 25, 2025

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The Ultimate Guide to Preventing Pesky Blocked Drains

Are you dealing with blocked drains again?

You’re washing dishes or taking a shower when the water starts to drain slowly, or not at all. It’s a simple inconvenience that can escalate fast. But what if you could prevent these messy blockages entirely?

This ultimate guide to blocked drains arms you with expert insights to understand the common blocked drain types, master practical drain cleaning methods, and learn how to fix blocked drains, for good. 

Ready to reclaim smooth plumbing?

Why Preventing Blocked Drains Matters

Blocked drains can quickly lead to bigger issues such as pipe damage, expensive repairs, foul odours, and even mould. 

Preventing them keeps your home running efficiently and saves you time, money, and heartache.

Understanding Blocked Drain Types

Here are the main blocked drain types: 

Foreign Objects: Hair, Soap, and Food Scraps

These everyday household items accumulate in drains over time, forming stubborn blocks.

Grease Buildup in Kitchen Drains

Oil and fat solidify when they cool, creating adhesive blockages in pipes.

Tree Root Intrusion

Underground tree roots seek moisture and can crack or crush old pipes, blocking entire sewer lines.

Structural and Design Failures

Pipes with improper slope or cracks impede flow. Poor design can lead to pooling and blockages.

Flushing Improper Items Down the Toilet

Items like wipes, cotton buds, and sanitary products don’t break down and block your sewer system.

How Blockages Develop 

  1. Waste enters your drain.

  2. Debris collects, especially grease or hair.

  3. Build‑up restricts water flow.

  4. Drain becomes slow or backs up.

  5. Full blockage or pipe damage occurs if left untreated.

Effective Drain Cleaning Methods

Here are the effective drain cleaning methods:

How to Use a Plunger

Start by covering the drain completely and pushing firmly. Repeat until water flows again.

Using a Drain Snake or Auger

Boil water and pour slowly in intervals. It loosens grease and soap scum over time.

Baking Soda and Vinegar Technique

Pour ½ cup of baking soda followed by 1 cup vinegar. Wait 30 minutes before flushing with hot water.

Enzyme-Based Cleaners

Use eco-friendly enzyme cleaners overnight to naturally digest organic waste.

Expert DIY Tips to Fix Blocked Drains

Apply the right drain cleaning methods based on the blockage:

  • Hair/soap scum: Use a drain snake or natural cleaners.

  • Grease: Flush with hot water regularly and use strainers.

  • Foreign objects: Locate with a snake and remove manually.

  • Tree roots or pipe damage: Call in professionals for CCTV inspection and repair.

These DIY steps help you know how to fix blocked drains, at least temporarily, while avoiding costly chemicals.

Preventative Measures for Blocked Drains

Keeping systems clear takes small daily efforts.

  • Install drain guards in sinks and showers.

  • Dispose of grease properly—never down the drain.

  • Flush only toilet paper to protect your sewer lines.

  • Avoid planting trees near pipes to reduce root damage.

  • Clean traps monthly to scrap debris.

  • Schedule professional maintenance annually for peace of mind.

These steps make your ultimate guide to blocked drains practical and enduring.

Cost Benefits of Prevention vs Repair

DIY prevention measures cost little compared to professional repairs. Dealing with a major blockage can run into hundreds or thousands of dollars, especially if pipes need relining or excavation.

Avoid the stress and expense by taking action early with simple preventive steps.

Real-Life Examples of Drain Blockages

Here are the real-life examples of drain blockages:

Bathroom Hair Build-Up

A shower blocked by hair took just a plunger and DIY snake to fix, effective and quick.

Grease-Caused Kitchen Blockage

Following a hot-water flush and baking soda combo, water flows freely again in under 30 minutes.

Tree Roots in Sewer Line

A professional CCTV inspection revealed root intrusion. A trenchless pipe relining resolved the issue permanently.

Tech Solutions to Keep Your Drains Clear

  • CCTV camera inspections reveal blockages and pipe damage.

  • Hydro-jetting blasts pipe interiors clean and are available from professionals.

  • Pipe relining offers a no-dig method to fix broken pipes.

While more expensive, these techniques ensure long-lasting solutions.

When to Call Sewer Surgeon

If your blockage persists after DIY attempts or you notice foul smells, gurgling, or multiple blocked fixtures, it’s time to bring in the experts.

At Sewer Surgeon, our trained plumbers use the latest methods, like hydro‑jetting and CCTV, to restore flow fast, without unnecessary excavation. 

Testimonials

Peter Lam
⭐️⭐️⭐️⭐️⭐️
7 months ago
“Wow! What can I say. Erin's front-line service was great and helpful. I was very lucky to have Sam doing my job. He took it to the next level. I find Sam is very patient and honest. His work is a piece of art—he left the site just as clean as when he started. Most importantly, he kept his word and even removed the three old tiles so I could do the tiling myself without issues. Thank you so much, Sam!”
Hedy Grahl
⭐️⭐️⭐️⭐️⭐️
2 months ago
“I have used Sewer Surgeon for over two years across two properties. Their quotes are always fair and great value compared to others. I appreciate that they provide itemised quotes, which many plumbers don’t. They’re friendly, efficient, and provide outstanding customer service. We’ve had them replace a washstand, upgrade a toilet cistern, replace taps—and we’ll keep coming back!”
P. Gup
⭐️⭐️⭐️⭐️⭐️
2 months ago
“I had a blocked sewer—my toilet wasn’t draining, and water was coming out of the overflow in the backyard. These guys were able to arrive within the hour and gave me a fair, competitive ballpark estimate over the phone. Sam showed up in less than 60 minutes, was friendly and professional, diagnosed and fixed the issue, and used a fibre-optic camera to show me the problem. The final cost was actually on the lower end of the quote. Highly recommended.”
Charlene Mascari
⭐️⭐️⭐️⭐️⭐️
6 months ago
“Very impressed with their service. Nathan came to my home and was extremely polite and respectful. He cleaned up thoroughly after the job and was a great representative of Sewer Surgeon. I’d definitely recommend Nathan and the company to anyone needing plumbing services.”
Mostafa Abdul-Kader
⭐️⭐️⭐️⭐️⭐️
1 month ago
“Five stars! Thank you Sewer Surgeon—and thank you, Sam. He arrived quickly, was polite, courteous, and solved our problems with excellent workmanship. Highly recommend!”

Sewer Surgeon’s Clear‑Mind Guarantee

You now have the ultimate guide to blocked drains, with insight into blocked drain types, cost-effective drain cleaning methods, and tips on how to fix blocked drains yourself.

We deliver solutions that keep your plumbing flowing freely, whether it’s a DIY fix or professional service.

Call us today at 1300 734 677 for expert help preventing and solving drain issues

Frequently Asked Questions

What are some things to keep in mind to avoid blocked drains?

Use drain strainers, dispose of grease responsibly, and avoid flushing non-biodegradable items.

How to prevent blocked drains?

Maintain your system with strainers, enzyme cleaners, hot water flushes and routine plumbing checks.

Are chemical drain cleaners safe?

They can corrode pipes and harm the environment. Natural or enzyme-based cleaners are a safer option.

Can I fix a blocked drain myself?

Yes, for minor issues using plungers, snakes, or homemade cleaners. For persistent or deep blockages, call a plumber.

How often should professional maintenance happen?

Annually or every two years is ideal, depending on your drain activity and household size.

Andy Quinn

Founder

Andy Quinn is the founder of Sewer Surgeon, a family-owned plumbing business serving Sydney with over 63 years of combined industry expertise. Andy and his team specialize in delivering reliable solutions for everything from blocked drains to emergency plumbing, ensuring quality service and customer satisfaction.