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Why Your Blocked Drain Keeps Coming Back in Seaford and the Southern Suburbs

  • Writer: Luke Williams
    Luke Williams
  • Feb 26
  • 2 min read

Updated: Mar 17




If you’ve had a blocked drain cleared, only for it to block again a few weeks or months later, you’re not alone.

Recurring drain issues are one of the most common plumbing problems in homes across Seaford, Morphett Vale and Adelaide’s southern suburbs.

The key question is not how to clear it.The real question is why it keeps happening.


Temporary Fix vs Long Term Solution

When a drain blocks, many people assume it simply needs clearing.

In some cases that’s true. However, if the blockage keeps returning, there is usually an underlying issue that hasn’t been properly identified.


Common causes include:

• Tree root intrusion

• Cracked or collapsed pipes

• Misaligned joints

• Heavy grease build up

• Foreign objects lodged in the line

Clearing the blockage without identifying the cause is only a short term solution.


Why Tree Roots Are a Major Problem in Established Suburbs

In areas like Seaford and Morphett Vale, many homes still have older clay or earthenware pipes.

Over time, small cracks develop. Tree roots are naturally drawn to moisture and will grow into even the smallest opening in your sewer line.

Once inside the pipe, roots expand and trap debris, eventually leading to repeated blockages.

This is why some drains appear to work fine for months before suddenly backing up again.


The Role of CCTV Drain Inspections

A CCTV drain inspection allows us to see exactly what is happening inside your pipes.

Instead of guessing, we can:

• Identify the exact cause of the blockage

• Locate the precise position and depth

• Assess the overall condition of the pipework

• Recommend the most appropriate long term solution

This approach prevents repeated emergency call outs and unnecessary expense.


Signs You May Need a CCTV Inspection

You should consider a CCTV inspection if:

• Your drains block repeatedly

• You hear gurgling sounds from sinks or toilets

• Multiple fixtures are draining slowly

• You notice sewer odours

• You have experienced previous tree root issues

Addressing the root cause early can save significant time and money.


A Smarter Approach to Blocked Drains

At Onboard Plumbing and Gas, we focus on resolving the underlying issue rather than applying temporary fixes.


If you are dealing with recurring blocked drains in Seaford, Morphett Vale or Adelaide’s southern suburbs, it may be time for a proper inspection.

Call us on 0403 513 795 for fast assistance or fill out the enquiry form on our contact page and we will be in touch shortly.


Servicing Seaford, Morphett Vale and surrounding southern suburbs.

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