If you have tried clearing a blocked drain and the problem keeps returning, the method matters as much as the effort. Many standard drain clearing techniques remove enough of a blockage to restore flow without fully clearing the pipe, which means the same issue builds back up within weeks. High pressure jetting is a different approach entirely, and for North Shore homeowners and businesses dealing with persistent drainage problems, it is often the most effective solution available.
What Is High Pressure Jetting?
High pressure jetting uses a specialised hose fitted with a purpose-built nozzle to deliver a concentrated, high-velocity stream of water through your pipes. The force is powerful enough to break apart compacted blockages, cut through tree roots, scour grease and fat from pipe walls, and flush debris completely out of the system. Unlike a traditional electric eel, which physically drills into a blockage but often leaves residue behind, high pressure jetting cleans the entire internal surface of the pipe. The result is not just a cleared blockage but a genuinely clean pipe that is far less likely to block again in the short term.
Who should operate jetting equipment?
Only trained operators. Jetting equipment carries real injury risks, which is why Safe Work Australia’s guide to high pressure water jetting sets out how businesses should manage them. Every Sweeney’s plumber is experienced and fully qualified, and the nozzle is chosen to suit the blockage, so the clean removes what’s causing the problem without damaging sound pipework.
Why does high pressure jetting suit North Shore drains?
Because the two biggest causes of repeat blockages in the area, tree roots and ageing pipework, are exactly what a jetter is built to clear.
Why do tree roots keep blocking North Shore drains?
Roots work their way into small cracks and joints in sewer pipes looking for moisture and nutrients, then keep growing until water can’t get past. Sydney Water’s guide to wastewater blockages lists large gum trees and figs among the species most likely to cause trouble. Ku-ring-gai Council describes its area as renowned for tree-lined streets, so it’s no surprise root intrusion is such a common call-out. A drain snake can punch a hole through a root mass, but the roots left clinging to the pipe wall catch paper and debris, and the blockage comes back. A root-cutting jetter nozzle scours the full circumference of the pipe instead.
Can’t the tree just be removed?
Often not. In the Ku-ring-gai Council area, any plant 5 metres or taller, or with a trunk at least 150 mm across at ground level, counts as a tree, and pruning or removing one usually needs Council approval unless an exemption applies. Council’s guidance on trees on private property explains that decisions focus on keeping trees unless there’s strong justification. That makes regular jetting, and relining any cracked sections, a practical way to keep the drain flowing while the tree stays put.
Does jetting work on older pipes?
Yes, and it’s often the better option for them. Older properties across the North Shore also tend to have cast iron or clay drainage pipes that accumulate scale, grease and mineral deposits over time. High pressure jetting cuts through that build-up without damaging the pipe itself, making it the preferred method for both clearing blockages and maintaining drainage flow in older systems. The camera inspection beforehand confirms the pipe is sound enough to jet.
What Can High Pressure Jetting Clear?
High pressure jetting is effective against a wide range of blockage types, including:
- Tree root intrusion in sewer and stormwater lines
- Grease and fat build-up in kitchen drain lines
- Silt, dirt and debris in stormwater drains
- Mineral scale and pipe build-up
- Soap residue in bathroom drains
- Foreign objects partially lodged in pipes
It is suitable for residential drains, commercial kitchen drainage, stormwater systems, sewer lines and industrial pipework. The same equipment and technique scales across all of these applications, which is why it is a go-to solution for everything from a blocked kitchen sink on a residential property to a major drainage clear-out at a commercial premises.
How Does the Process Work?
Step 1: CCTV Drain Inspection
Before jetting begins, Sweeney’s Plumbing carries out a CCTV drain inspection to identify exactly where the blockage is, what is causing it and whether there is any pipe damage that needs to be addressed. Jetting without inspecting first risks pushing debris further into the system or missing a structural issue that would cause the blockage to return.
Step 2: High Pressure Jetting
Once the blockage is located, the jetting hose is fed into the pipe and the water is delivered at high pressure through the nozzle. Different nozzle types are used depending on the nature of the blockage, whether that is a root-cutting nozzle for tree root intrusion or a flushing nozzle for grease and debris removal.
Step 3: Post-Jetting Inspection
After jetting is complete, a follow-up camera check confirms the pipe is clear and identifies whether any damage such as cracking or root infiltration points requires further attention through pipe relining.
When Should You Book High Pressure Jetting?
High pressure jetting is the right call when:
- A blocked drain keeps returning after standard clearing
- Multiple drains in the property are slow or blocked simultaneously
- There is a known tree root problem in the drainage system
- Grease build-up is causing recurring kitchen drain blockages
- A routine maintenance clear-out is needed for a commercial property
- A new property purchase reveals drainage issues on inspection
Who clears stubborn drains on the North Shore?
Sweeney’s Plumbing does, from its Turramurra office, for homes and businesses across its local service area. Every job starts with a camera to find the cause, and the team won’t leave until the pipe is running clear. You’ll also get a free estimate to approve before any work begins.
If a drain on your property has blocked more than once this year, have a look at how Sweeney’s clears stubborn blockages, then get it booked in. Send through your details or call the office on 1800 219 682.
