A blocked drain almost always warns you first. Slow water, gurgling, smells, patchy pooling and drains that block in the same spot are the five signs worth acting on early. Catching them before a full backup usually means a cheaper, cleaner fix and, where a pipe is actually damaged, a proper repair rather than a patch.
Summarise this with AI
- Slow-draining sinks and showers are the earliest and most-missed warning
- Gurgling from a toilet or floor waste often means a partial main-line blockage
- A drain that keeps blocking in the same spot usually points to a pipe fault, not just build-up
- Bad smells from a drain mean trapped waste, not just a dirty plughole
- A CCTV camera finds the real cause so the fix is targeted, not guesswork
- Older Kwinana homes on clay sewers are prone to tree-root intrusion
A blocked drain never picks a good time, but it rarely arrives without warning. Most of the drains we get called out to across Perth's southern suburbs were dropping hints for weeks before they finally backed up.
The trick is knowing what to look for. Catch a drain early and it is usually a quick, cheap clear. Leave it until the water is coming back up the shower, and you are into a weekend emergency.
Here are the five signs worth paying attention to, and what to do about each one.
1. Water draining slower than it used to
This is the earliest sign and the one most people ignore. A sink, basin or shower that takes a little longer to clear than it did a few months ago is telling you something is narrowing the pipe.
It rarely fixes itself. Whatever is building up in there, usually hair and soap in the bathroom or fat and food in the kitchen, keeps growing until the day it stops the flow completely.
What to do
For a bathroom drain, pull the hair out of the waste and try a kettle of hot water first. If it is slow again within a week, the build-up is further down the line and worth a proper clear before it blocks fully.
2. Gurgling sounds from the toilet or floor wastes
If your toilet gurgles when you run the basin, or a floor waste bubbles when the washing machine drains, air is being pushed back up the line because water cannot get past a partial blockage.
Gurgling that shows up across more than one fixture usually means the blockage is in the main line, not a single trap. That is a bigger job if it is left to build.
Don't ignore multiple fixtures
When two or more fixtures gurgle or drain slowly at the same time, treat it as a main-line problem. Clearing one fixture will not fix it, and it tends to get worse quickly.
3. A bad smell rising from the drain
A drain that smells is holding waste it should be flushing away. In a partly blocked line, food, grease and organic matter sit and rot instead of moving through, and the smell drifts back up through the plughole or gully.
A quick clean of the plughole might mask it for a day, but if the smell keeps coming back the cause is further down the pipe.
4. Water pooling around drains or in the yard
Water rising around a floor waste, or a soggy patch that appears in the yard near where the drain runs, means the line cannot take the flow away fast enough. Outside, it often points to a blocked or damaged underground pipe.
After heavy rain, an outdoor pit or soakwell that fills and drains slowly is usually full of sand and leaf litter rather than actually broken, but it still needs clearing before the next downpour.
5. The same drain blocking over and over
This is the big one. A drain that keeps blocking in the same spot, even after it has been cleared, is not just build-up. Something in the pipe itself is catching debris every time.
What's usually behind a recurring blockage
- Tree roots that have found a joint in an older clay sewer line
- A cracked or partly collapsed section of pipe
- A joint that has shifted and left a ledge inside the line
- A belly or sag in the pipe that holds water and sediment
In the older Kwinana suburbs like Medina, Calista and Orelia, a lot of homes still run on their original clay sewer lines, and tree-root intrusion at the joints is the most common reason a drain keeps coming back.
Why we camera the line
Clearing a recurring blockage without looking is guesswork. Ben runs a CCTV camera down the line to find the exact cause, and where a section of pipe is damaged he can dig it up and replace it himself with his mini excavator, so the problem is fixed rather than patched.
How to keep your drains clear
Most household blockages come down to what goes down the drain. A few simple habits prevent the majority of them.
- Scrape plates into the bin and never pour cooking fat down the sink
- Fit a hair catcher over shower and bath wastes and clean it out weekly
- Only flush the three Ps: pee, paper and poo, never wipes, even the flushable ones
- Run hot water through the kitchen sink after washing up greasy pans
- Get a recurring slow drain camera-checked before it turns into a full backup
Frequently asked questions
For a minor slow drain it can help, but it is a short-term fix and the harsh ones can damage older pipes. If a drain keeps blocking, a chemical will not touch tree roots or a damaged pipe, and that is what a camera inspection is for.
When more than one fixture is slow or gurgling at the same time, it usually points to the main line rather than a single trap. A CCTV camera confirms exactly where it is so the clear is targeted.
If it is simple build-up, a proper jet and camera-check usually keeps it clear. If the camera shows a damaged pipe or roots, we will show you the cause and sort a permanent fix rather than have you calling back every few months.
