What to Do When You Have a Blocked Drain

A blocked drain can quickly turn from a minor inconvenience into an overflowing toilet, flooded bathroom or sewer backing up around your property. If your toilet is slow to drain, water is coming up through an overflow relief gully, sinks are making gurgling noises or multiple fixtures are backing up at once, there may be a blockage within your sewer or wastewater drainage system.

At J.PAC Plumbing, we provide professional blocked drain services throughout Melbourne’s South East, Bayside and surrounding suburbs, using high-pressure water jetting, CCTV drain cameras and electronic locating equipment to clear blockages and investigate why they occurred.

If you think you have a blocked drain, here's what you should do.

Signs You May Have a Blocked Drain

Drain blockages don't always start with a completely overflowing toilet. There are often warning signs before a drain becomes fully blocked.

Common signs include:

Toilets filling higher than normal when flushed
Toilets draining slowly
Showers, baths or basins taking longer to drain
Gurgling noises coming from toilets or waste pipes
Water backing up into showers or floor wastes
Overflowing sewer drains outside
Water rising from an overflow relief gully
Unpleasant sewer smells
Multiple plumbing fixtures becoming blocked at the same time
Stormwater pits overflowing during rainfall
Recurring blockages after previously having the drain cleared

If several fixtures are affected at once, the problem may be further downstream within the property's main sewer drainage.

What Should You Do If Your Drain Is Blocked?

If you suspect a serious blockage, stop using water wherever possible.

Continuing to flush toilets, run showers, use washing machines or empty sinks can add more water to an already blocked drainage system and potentially cause wastewater to overflow elsewhere.

For a minor isolated blockage, such as a slow basin, a simple plunger may sometimes clear the obstruction.

However, if you have an overflowing sewer, repeatedly blocked toilet, water backing up through other fixtures or an external drain overflowing, it's generally time to contact a licensed plumber.

Don't Keep Flushing a Blocked Toilet

If your toilet bowl fills with water and doesn't drain normally, repeatedly flushing it can make the situation significantly worse.

If the blockage is downstream, each flush adds several more litres of water to the drainage system.

Instead, stop using the toilet and check whether other fixtures within the property are also draining slowly or backing up. This information can help your plumber determine whether the problem is isolated to the toilet or affecting the main sewer drain.

Can I Clear a Blocked Drain Myself?

Minor blockages can sometimes be cleared with a plunger. However, recurring or significant sewer blockages generally require professional drain-cleaning equipment.

Avoid repeatedly pouring harsh chemical drain cleaners into the drainage system. Apart from potentially damaging some plumbing materials, chemicals may remain trapped behind the blockage and create an additional hazard when the drain is later opened or mechanically cleaned.

Professional blocked drain equipment allows the obstruction to be physically cleared and the drainage system investigated.

How Do Plumbers Clear Blocked Drains?

At J.PAC Plumbing, the method used depends on the location and severity of the blockage.

For significant sewer and stormwater blockages, we can use high-pressure water jetting equipment to clean the inside of the drainage pipe and remove obstructions.

Different jetting heads can be used depending on what we encounter, including equipment designed to assist with tree roots, silt, grease and other debris.

Getting the drain flowing again is important — but we also want to understand why it blocked in the first place.

Why CCTV Drain Inspections Are Important

Once a blocked drain has been cleared, a CCTV drain inspection can provide valuable information about the condition of the underground drainage.

A specialised drain camera is inserted into the pipework, allowing us to inspect areas that otherwise cannot be seen.

CCTV inspections can help identify problems including:

Tree root intrusion
Cracked or broken drainage
Dislodged pipe joints
Collapsed pipework
Foreign objects
Heavy silt or debris
Deteriorated older drainage
Sections of drainage holding water
Other restrictions within the pipe

This can be particularly important when a property has experienced recurring blocked drains.

Simply restoring flow doesn't necessarily mean the underlying problem has been resolved.

Why Does My Drain Keep Blocking?

If you've had the same drain cleared multiple times, there may be an underlying defect within the drainage system.

One common example is tree root intrusion. Roots can enter through cracks or defective joints and continue growing inside the drainage system. A plumber may clear the roots and restore flow, but if the damaged section remains, the roots may eventually return.

Older or damaged pipework can also crack, move or deteriorate over time.

In these situations, we can use CCTV equipment to investigate the drain and electronic locating equipment to determine the approximate position and depth of the problem.

This allows us to discuss whether continued maintenance or excavation and permanent drainage repair is the better option.

Tree Roots in Sewer & Stormwater Drains

Tree roots are a common cause of drainage problems, particularly around established properties with mature gardens.

Roots naturally seek moisture and can enter drainage systems through defective joints, cracks or damaged sections of pipe.

J.PAC Plumbing has specialised root-cutting equipment that can be used with our high-pressure jetting system to remove root intrusion from affected drainage.

Where significant structural damage is identified, we can locate the affected section and provide options for permanent repair or replacement.

Blocked Stormwater Drains

Not every blocked drain involves sewerage.

Stormwater drains can become restricted by tree roots, soil, leaves, silt and other debris. During heavy rainfall, a restricted stormwater system may result in overflowing pits, overflowing gutters or water pooling around the property.

We can high-pressure clean and CCTV inspect stormwater drainage to investigate restrictions and determine the condition of underground pipework.

Where damaged stormwater drainage is identified, we can also carry out excavation and replacement works.

Should a Blocked Drain Be Camera Inspected?

For a simple one-off blockage, CCTV inspection may not always be necessary.

However, we strongly recommend considering a CCTV drain inspection when a blockage is recurring, tree roots are removed, structural damage is suspected or the cause of the blockage isn't clear.

A camera inspection provides considerably more information than simply knowing that water is flowing again.

At J.PAC Plumbing, our goal isn't just to get the drain moving — it's to understand what's happening inside it and give you the information needed to make an informed decision.

What Happens When J.PAC Plumbing Attends a Blocked Drain?

We first assess what's happening and determine the most appropriate access point and drain-cleaning method.

Depending on the problem, works may include high-pressure water jetting, specialised root cutting, CCTV drain inspection and electronic drain locating.

Once the blockage is cleared, we'll test the drainage system and explain what we've found.

If the CCTV inspection identifies damaged drainage, we'll show you the issue and discuss the available options rather than automatically recommending unnecessary excavation.

Sometimes the drain simply needs cleaning. Other times, repairing a damaged section can prevent the same blockage from continually returning.

Blocked Drain Plumber in Melbourne's South East

J.PAC Plumbing provides professional blocked drain services throughout Melbourne's South East and Bayside, including Mordialloc, Mentone, Parkdale, Chelsea, Cheltenham, Beaumaris, Black Rock, Brighton, Hampton, Sandringham, Dingley Village, Patterson Lakes, Carrum Downs, Seaford, Frankston and surrounding suburbs.

We have invested in professional high-pressure drain jetting, CCTV drain cameras, electronic locating equipment and excavation equipment, allowing us to take a blocked drain from initial investigation through to permanent drainage repairs where required.

Whether you're dealing with a blocked toilet, blocked sewer, blocked stormwater drain, tree roots or a drain that keeps blocking, contact J.PAC Plumbing to arrange an inspection.