BLOCKED DRAINS
Blocked Drain Keeps Coming Back? What May Actually Be Causing It
If the same drain blocks again after being cleared, the problem may not be the blockage itself. It may be a sign of roots, build-up, foreign objects or damaged pipework further down the line.
By Wakeline Plumbing Solutions | Adelaide, South Australia
IN SHORT
Clearing a blocked drain can restore water flow, but it does not always explain why the problem happened. SA Water lists tree roots, fat, oil or grease build-up, foreign objects and sewer line collapse among the common causes of sewer blockages. When the same drain keeps blocking, identifying the cause can help you avoid treating the same symptom again and again.
Why a blocked drain can return after clearing
When a drain is blocked, the immediate priority is usually to get it flowing again. Once water begins moving properly, it can feel as though the problem is finished.
But a blockage is sometimes only the visible symptom. If roots are growing through a damaged join, grease has continued to accumulate, an object is catching waste, or a section of pipe has collapsed, the same drain may block again after it has been cleared.
What could be causing the repeat blockage?
SA Water explains that sewer blockages usually happen when something restricts the proper flow of wastewater. Common causes include tree roots, fat, oil or grease build-up, foreign objects and sewer line collapse.
That is why a repeating blockage should not automatically be treated as a simple maintenance issue. The right solution depends on what is actually happening inside the pipe.
COMMON UNDERLYING CAUSES
Why might the same drain keep blocking?
01
Tree roots
Roots may enter damaged joins or weak points in underground pipework.
02
Grease build-up
Fat, oil and grease can restrict flow as material builds up inside the line.
03
Foreign objects
Items that should not be flushed can catch waste and contribute to a blockage.
04
Pipe damage
A collapsed or damaged section can prevent wastewater from flowing properly.
Clearing the drain and diagnosing the cause are different jobs
Clearing a drain removes or breaks through the obstruction so wastewater can flow again. That can be exactly what is needed for a one-off blockage.
Diagnosis becomes especially valuable when the problem repeats. A closer investigation can help determine whether the drain is repeatedly catching material because of roots, damage, collapse or build-up, rather than simply assuming another clear-out will solve it.
Caption: A CCTV drain inspection can help identify what is causing a blockage to return.
DAN’S PRACTICAL ADVICE
“If I am called to a drain that has already been cleared and the problem has returned, I do not want the customer paying for the same temporary result again. The next step is to understand what is causing it to come back.”
Dan Wake | Wakeline Plumbing Solutions
When a CCTV drain inspection may be worth considering
If a blockage keeps returning, a CCTV drain inspection may help Dan see what is happening inside the pipe. It can help identify visible tree roots, heavy obstruction or damaged sections before further work is recommended.
Not every blocked drain needs a camera inspection. A single, straightforward blockage may only need clearing. But when you have paid for clearing before and the issue comes back, finding the underlying cause may be the more practical next step.
Tired of the same drain problem coming back?
If your drain has already been cleared but keeps blocking again, speak directly with Dan. He can investigate the issue and explain the most practical next step before further work is agreed.
FREQUENTLY ASKED QUESTIONS
Questions about recurring blocked drains
RELATED ARTICLES
More blocked drain advice from Wakeline
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Tree Roots in Drains Adelaide
Why roots may enter underground pipes and cause the same blockage to return.
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Do You Need a CCTV Drain Inspection?
When a drain camera can help find the cause of a repeating problem.
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Signs You May Have a Blocked Sewer Line
What smells, sounds and slow drains may be trying to tell you.
Sources
SA Water, Sewer blockages and overflows.
SA Water, Sewer problems and drain blockages.
Need help with a recurring blocked drain?
Wakeline Plumbing Solutions helps Adelaide homeowners investigate and clear blocked drains, with practical advice when the same issue keeps returning. Speak directly with Dan.
Request a callback
Tell us what is happening and Dan will get back to you. For urgent blocked drain issues, calling is usually the fastest option.
Phone: 0403 626 998
Email: contact@wakelineplumbingsolutions.com.au
Licensed & insured plumber
ABN: 25204084108