Blocked Drains Northern Rivers: CCTV Inspection, Prevention & When to Call

Most blocked drains don't happen overnight. They develop gradually — a slow drain here, a gurgling toilet there — until one day the system backs up completely. The good news is that with the right knowledge and a simple maintenance routine, most blocked drains are preventable.

This guide focuses on two things: understanding what CCTV drain inspection reveals and why it matters, and building a practical prevention plan that keeps your drains clear year-round in the Northern Rivers climate.

For a detailed breakdown of clearing methods including water jetting and pipe relining, see our companion guide: Blocked Drains Northern Rivers: Diagnostics, Jetting & What Really Works.

A CCTV drain inspection uses a waterproof camera mounted on a flexible push rod to inspect the inside of your drain pipes. The camera transmits live video to a monitor, and the footage can be recorded for later review.

The camera is inserted through an inspection opening, gully trap, or cleanout point and pushed through the pipe. As it travels, we can see exactly what's inside — the pipe condition, any blockages, root intrusions, cracks, or structural defects.

Root intrusions: We can see exactly where roots have entered the pipe, how extensive the intrusion is, and whether the roots have caused structural damage. This determines whether jetting will fix the problem or whether relining is needed.

Grease and fat build-up: Accumulated grease deposits show up clearly on camera. We can see how much the pipe bore has been reduced and whether the build-up is localised or spread over a long section.

Pipe condition: The camera reveals the overall state of the pipe — whether it's in good condition, showing signs of corrosion or scaling, or has cracks and fractures that need attention.

Collapsed sections: A collapsed pipe shows as a sudden narrowing or complete obstruction. This can't be fixed by jetting — it requires relining or excavation.

Offset joints: Where pipe sections have shifted out of alignment, a ledge forms that catches debris. CCTV reveals these offsets and their severity.

Foreign objects: Toys, wipes, rags, and other items that have been flushed show up clearly. We can often retrieve them with a retrieval tool inserted through the camera access point.

Incorrect falls: Drain pipes need to be laid at the correct gradient to allow waste to flow freely. CCTV can reveal sections where the pipe has settled and the gradient is incorrect, causing waste to pool and accumulate.

After a blockage is cleared: A post-clearing inspection confirms the pipe is fully clear and reveals any damage that was hidden by the blockage. This is the most important time to inspect — clearing a blockage without inspecting the pipe is like treating a symptom without diagnosing the cause.

Before buying a property: A CCTV drain inspection is one of the most valuable pre-purchase checks you can do. Drain repairs can be expensive, and problems aren't visible in a standard building inspection. We regularly find significant issues — root intrusions, collapsed sections, offset joints — in properties that have passed standard inspections.

For older homes: If your home was built before the 1980s and you've never had a drain inspection, it's worth knowing what you've got. Clay and cast iron pipes from this era are often in poor condition, and knowing the state of your drains lets you plan maintenance proactively rather than reactively.

When you have mature trees: If you have large trees — particularly camphor laurel, ficus, or jacaranda — within 10 metres of your drain pipes, annual CCTV inspection is good insurance. Root intrusions are much cheaper to deal with when caught early.

After a flood event: Floodwaters carry silt, debris, and contaminants that can settle in drain pipes. After a significant flood, a CCTV inspection can reveal whether your drains have been affected.

If you notice warning signs: Slow draining, gurgling sounds, unpleasant odours, or water backing up are all reasons to get an inspection before the problem becomes a full blockage.

After a CCTV inspection, we give you a clear report of what we found and what we recommend. This might be:

• No action needed — the pipe is in good condition
• Jetting recommended — there's build-up or a minor root intrusion that jetting will clear
• Relining recommended — there's structural damage or recurring root intrusion that warrants relining
• Excavation required — the pipe is too damaged for relining and needs replacement
• Monitor and re-inspect — there's a minor issue that doesn't need immediate action but should be watched

We'll always give you an honest assessment. If your drains are fine, we'll tell you. We don't recommend work that isn't needed.

The Northern Rivers has a distinct seasonal pattern that affects drain maintenance. Here's a practical guide to what to do and when.

The Northern Rivers wet season brings heavy rainfall that tests stormwater drains. This is the time to make sure everything is clear and flowing.

What to do:

• Clear stormwater drain grates — remove leaves, debris, and any build-up from all stormwater grates, downpipe outlets, and surface drains. A blocked stormwater drain during a heavy rain event can cause flooding.
• Check downpipes — run a hose down each downpipe to confirm it's clear. Blockages in downpipes are common and often go unnoticed until heavy rain.
• Inspect subfloor vents — make sure subfloor ventilation openings are clear and that water can't enter through them during heavy rain.
• CCTV inspection if you have trees — if you have camphor laurel, ficus, or other aggressive-rooted trees near your drains, a pre-wet-season inspection is good insurance.

What to watch for:

• Water pooling in the yard after rain (stormwater drain issue)
• Gutters overflowing despite clear gutters (downpipe blockage)
• Water entering the subfloor (drainage or stormwater issue)

After the wet season, it's worth checking for any damage or build-up that occurred during heavy rain events.

What to do:

• Check for silt in stormwater drains — heavy rain events wash silt into stormwater drains. If you notice slow drainage after rain, the drain may have silted up.
• Inspect gully traps — gully traps can accumulate debris during the wet season. Clear any build-up.
• Check for wet patches — persistent wet patches in the yard after the wet season has ended can indicate a drain leak or blockage.

What to watch for:

• Slow drainage in stormwater drains (silt build-up)
• Persistent wet patches in the yard
• Subsidence or soft spots in the yard (possible pipe leak)

Winter is when grease blockages are most common. Cooking fats solidify faster in cooler temperatures, and the increased use of heating means more cooking — and more fat going down the drain.

What to do:

• Enzyme treatment — apply an enzyme drain treatment to kitchen and bathroom drains monthly. Enzymes break down grease, soap scum, and organic matter before it accumulates.
• Kitchen drain check — run hot water for 30 seconds after washing greasy dishes. Better still, wipe pans with paper towel before washing.
• Bathroom drain check — clean hair from shower and bath drain covers weekly. Hair combined with soap scum is a common cause of bathroom drain blockages.

What to watch for:

• Slow draining kitchen sink (grease build-up)
• Gurgling sounds from drains (partial blockage forming)
• Unpleasant odours from drains (organic matter accumulating)

Spring is when tree roots grow most aggressively. If you have trees near your drain pipes, this is the time to be vigilant.

What to do:

• CCTV inspection — if you have a history of root intrusions, a spring inspection lets you catch new growth before it becomes a full blockage.
• Root treatment — if you've had root intrusions cleared in the past, a root inhibitor treatment after jetting can slow regrowth.
• Tree assessment — if you're planning to plant new trees, check the location of your drain pipes first. Keep large trees at least 3 metres from drain pipes; aggressive species like camphor laurel and ficus should be kept 5+ metres away.

What to watch for:

• Slow draining (early sign of root intrusion)
• Gurgling sounds from toilets (root intrusion in main drain)
• Wet patches in the yard (possible drain leak caused by root damage)

The kitchen drain is the most common site of grease blockages. Here's how to keep it clear:

Do:

• Wipe pans, plates, and cooking utensils with paper towel before washing
• Use a sink strainer to catch food scraps
• Run hot water for 30 seconds after washing greasy dishes
• Use an enzyme drain treatment monthly

Don't:

• Pour cooking oil, fat, or grease down the drain — ever
• Wash food scraps down the drain (use a compost bin)
• Use chemical drain cleaners regularly — they can damage pipes and are only a temporary fix

Hair and soap scum are the main culprits in bathroom drain blockages.

Do:

• Use a hair catcher in the shower and bath
• Clean the hair catcher after every shower
• Clean the drain cover weekly
• Use an enzyme drain treatment monthly

Don't:

• Flush wipes down the toilet — even "flushable" wipes don't break down and cause blockages
• Flush cotton buds, dental floss, or sanitary products
• Ignore slow draining — it's a sign a blockage is forming

The toilet is connected to the main sewer drain. Blockages here can affect the entire system.

Do:

• Flush only toilet paper and human waste
• Use single-ply toilet paper if you have older pipes (it breaks down faster)
• Know where your main sewer cleanout is located

Don't:

• Flush wipes (even "flushable" ones)
• Flush cotton buds, dental floss, or sanitary products
• Flush paper towel or tissues
• Ignore a slow-flushing toilet — it's an early warning sign

Stormwater drains are often neglected until they fail during a rain event.

Do:

• Clear grates and downpipe outlets before the wet season
• Keep garden beds away from stormwater drain grates
• Redirect downpipes away from garden beds (root intrusion risk)

Don't:

• Allow garden waste to accumulate near stormwater grates
• Connect sewer waste to stormwater drains (illegal and causes serious problems)
• Ignore slow drainage after rain

• Sewage backing up into the house — health hazard
• Sewage smell inside the house
• Multiple fixtures blocked simultaneously
• Water pooling near the house foundation
• Blocked drain before a forecast heavy rain event

• Single fixture draining slowly (getting worse)
• Gurgling sounds from drains or toilet
• Unpleasant odour from drains that doesn't clear
• Wet patch in the yard that's not explained by recent rain

• Slow draining that's been present for weeks
• You have mature trees near your drain pipes and haven't had an inspection in 2+ years
• You're buying a property and want a drain inspection
• Your home was built before 1980 and you've never had a drain inspection

A slow drain that's ignored doesn't stay slow — it gets worse. Here's what the cost escalation looks like:

The message is clear: catching a problem early is dramatically cheaper than dealing with it after it's become a full blockage or caused structural damage.

How long does a CCTV drain inspection take? A standard residential inspection takes 30–60 minutes. We inspect the main drain and any branch drains that are accessible. We provide a verbal report on the day and can provide written footage if required.

Can I do a CCTV inspection myself? Consumer-grade drain cameras are available, but they're significantly less capable than professional equipment. They have limited reach, lower image quality, and no locating capability. For a meaningful inspection, professional equipment is needed.

How often should I have my drains inspected? For most homes: every 3–5 years. For homes with mature trees nearby: annually. For older homes (pre-1980): every 2 years.

Will jetting damage my pipes? High-pressure jetting is safe for all standard pipe materials including PVC, clay, cast iron, and concrete. We adjust the pressure based on the pipe condition — we won't jet a pipe that's too fragile to handle it.

What's the difference between a drain inspection and a building inspection? A building inspection checks the visible structure of the property. It doesn't include drain inspection — a plumber with CCTV equipment is needed for that. We strongly recommend a drain inspection as part of any pre-purchase due diligence.

We offer a preventive drain maintenance service for residential and commercial properties across the Northern Rivers. This includes:

• Annual CCTV inspection of main drain and accessible branch drains
• High-pressure jetting if build-up or minor root intrusion is found
• Written report with footage
• Recommendations for any further work

For properties with a history of root intrusions, we can set up a regular maintenance schedule that keeps the problem under control without the cost of emergency call-outs.

We service Lismore, Ballina, Byron Bay, Casino, Mullumbimby, Bangalow, Lennox Head, Evans Head, Grafton, Maclean, Yamba, Nimbin, Alstonville, Ocean Shores, and all surrounding areas.

Call Terry on 0487 810 593 to book a drain inspection or discuss a maintenance plan.

Master Blasta Plumbing Services — Licence No. 230095C | ABN 87 476 153 122