Trenchless relining is a modern plumbing method to repair damaged underground pipes without digging trenches. It involves installing a new pipe liner inside the old pipe to seal cracks and restore function. Key benefits are no excavation needed, faster than traditional methods, and less disruption.
Trenchless relining, also known as Cured-In-Place Pipelining (CIPP), is a pipe repair method that renews damaged pipes by installing a new pipe within the existing pipe. This is done by impregnating a resin-saturated felt liner into the original pipe and curing it in place using hot water or steam.
A significant benefit of trenchless relining is the minimal excavation required, thus preserving the area. The method uses specialised equipment to access pipes through manholes, significantly reducing surface disruption.
The cured liner forms a strong 'pipe within a pipe’, with seamless walls to strengthen the structure and prevent leaks. Durable materials result in relined pipes that often surpass 50 years of service life.
In summary, trenchless drain relining is a fast, cost-effective way to refurbish ageing pipes, preserving roads and properties while improving flow capacity and reliability.
The following are the critical stages in the trenchless pipe relining process:
Trenchless relining is faster, less invasive and more cost-effective than traditional methods, avoiding the need for digging and demolition of surrounding infrastructure.
The first step is to conduct a CCTV camera pipe inspection. A technician will insert a camera on a flexible cable through an existing pipe access point, often a cleanout or manhole. The camera travels through the pipe to identify any damage, defects, cracks, leaks or obstacles.
CCTV inspection determines if the pipe is structurally sound for trenchless relining and identifies the location and extent of repairs needed. It also measures the interior diameter and length to custom-design the CIPP liner for the job.
Prior to CIPP liner installation, the damaged pipe is rigorously cleaned with high-pressure water jets to eliminate grease, mineral deposits, roots, and other debris.
The pipe ends are sealed off with temporary barriers that allow control and containment of air pressure for the liner inflation process. Bypass pumping may be set up to maintain the sewage flow, particularly if the main sewer line is being relined.
For compromised pipelines, the resin-impregnated CIPP liner is inserted and inverted during installation to cover the damaged section effectively.
Air or water pressure inflates the liner tightly against the pipe walls, extending along the entire length. The liner now bridges and contains the pipe damage, ready for curing.
Steam cure installations employ steam generators, while hot water systems circulate water at up to 82°C to activate the resin and ensure a thorough cure.
The process takes several hours, as technicians maintain the temperature and pressure. The heat-cured resin transitions from its flexible state into a hardened, jointless pipe lining with long-term structural stability.
A final CCTV inspection confirms correct deployment of the CIPP. The end barriers are removed to reconnect the renewed piping with normal inflow and outflow restored.
Trenchless relining offers numerous advantages over traditional pipe replacement methods that involve excavation:
Trenchless relining is more cost-effective than replacement, eliminating expenses for demolition and landscape repairs, and requires less equipment since existing pipes are reused.
The epoxy or polyester-reinforced liners used in CIPP method strengthen and reinforce ageing pipe walls.
Pipes subjected to relining can have a service life of 50-100 years, far exceeding the 25-year lifespan of lesser-quality pipes, making trenchless relining a long-term investment.
Trenchless pipe relining presents several advantages over traditional pipe replacement, including:
Trenchless relining ensures minimal ground disruption, offering a method to preserve your landscape while maintaining the integrity of aboveground infrastructure and traffic flow. For further advice, please contact our customer service.
The process clears any internal build-up, restoring pipes to their optimal flow efficiency with smooth interior walls.
Eco-friendly technologies in trenchless relining, like Brawoliner, use UV light for curing, reducing emissions and eliminating hazardous by-products.
Pipe relining is a trenchless, environmentally-friendly method to repair damaged drinking water pipes using epoxy coatings. Research shows epoxy barriers prevent toxic leaching & corrosion, creating safe, long-lasting drinking water pipes.
Read MoreA leaky, running or noisy toilet can often be fixed by adjusting the fill valve, replacing the flapper or checking other internal parts. But if you hear whistling, humming or other strange sounds, it likely requires a plumber to fully diagnose and repair the issue.
Read MoreWhen choosing a gas supplier in NSW, start by comparing plans and pricing from the major providers like AGL, Origin, Alinta & EnergyAustralia to find the best deal. Check if discounts are available and make sure you understand all fees. Contact us to switch plans and start saving money on gas today.
Read MoreHurstville, 2220 NSW
We will call back as soon as possible.
