How to Prevent Blocked Drains: A Melbourne Homeowner's Guide
By Joel - Licensed Plumber, Hobsons Bay Plumbing
Blocked drains are one of the most common - and preventable, plumbing emergencies in Melbourne's western suburbs. Whether it's a slow-draining shower, a gurgling toilet, or a full sewer backup, most blockages build up over weeks or months before they cause a problem.
The Top Causes of Blocked Drains in Melbourne
- Tree roots: The #1 cause of sewer blockages in suburbs like Williamstown, Yarraville, and Altona. Roots seek out the moisture in clay pipes and can crack joints to get inside.
- Grease and fat: Kitchen drains are notorious for grease buildup. Oil solidifies inside the pipe and catches food scraps, creating a progressively tighter blockage.
- Wet wipes and sanitary products: Despite "flushable" labels, these products don't break down in pipes and are a leading cause of toilet blockages.
- Hair: Bathroom drains accumulate hair over time, especially in shower waste traps.
- Foreign objects: Kids' toys, excessive toilet paper, cotton buds - they all end up causing blockages.
Prevention Tips That Actually Work
In the Kitchen
- Never pour cooking oil or grease down the drain. Let it cool, wipe it into the bin with paper towel.
- Use a sink strainer to catch food scraps - empty it into the bin, not the drain.
- Run hot water for 30 seconds after washing dishes to help flush soap residue.
In the Bathroom
- Install a hair catcher over the shower drain - clean it weekly.
- Only flush toilet paper and human waste. Everything else goes in the bin.
- Clean pop-up basin plugs monthly - they trap hair and soap scum.
Outside
- Keep stormwater grates clear of leaves and debris, especially before winter.
- Consider having large trees near sewer lines assessed - root barriers or regular maintenance jetting can prevent expensive emergency callouts.
- Know where your inspection openings (IOs) are located - this speeds up any future drain work.
When to Book a CCTV Drain Inspection
A CCTV drain inspection gives you a clear picture of what's happening inside your pipes - before a small issue becomes an emergency. We recommend an inspection if:
- You've had recurring blockages in the same drain
- Your home is over 30 years old with original clay pipes
- You're buying a property and want to check the drain condition
- You notice damp patches, sinkholes, or sewage smells in the yard
Want to get ahead of blockages? Book a preventive CCTV drain inspection - we'll show you the footage and recommend a maintenance plan if needed. See our blocked drain services page for more information.
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