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Q. Is Draintech Solutions accredited by Sydney Water?

A. Yes. Draintech Solutions is an accredited Sydney Water Field Testing organisation, authorised to undertake CCTV inspections and acceptance testing of newly constructed water, wastewater and stormwater assets in accordance with Sydney Water requirements.

Our accredited field testers verify that new pipeline infrastructure has been constructed to the required standards before it is accepted into the Sydney Water network. We provide comprehensive testing, CCTV inspections and reporting to support subdivision, commercial and infrastructure developments.

In addition, Draintech Solutions operates dedicated CCTV equipment for potable water inspections and follows strict cleaning and disinfection procedures to maintain the integrity of Sydney Water assets.

Q. What pipe sizes can you inspect and rehabilitate?

A. Our equipment is capable of inspecting and rehabilitating pipelines ranging from small building drainage systems through to large-diameter stormwater, sewer and culvert assets. We tailor our equipment selection to suit each project's size, condition and access constraints.

Q. Do you undertake CCTV inspections before repairs?

A. Yes. A CCTV inspection is typically the first step in the rehabilitation process. It allows us to accurately identify defects, assess the condition of the pipeline and recommend the most effective repair method. Post-repair CCTV inspections are also completed to verify the quality of the completed works.

Q. What is Robotic Cutting?

A. Robotic cutting is a trenchless pipe rehabilitation method that uses remotely controlled robotic equipment to perform precision cutting, grinding and reinstatement work from within the pipeline. Guided by live CCTV, the robot removes concrete deposits, tree roots, protruding connections, joint displacements, deposits and other obstructions without the need for excavation.

At Draintech Solutions, our advanced robotic cutting systems restore pipeline capacity, prepare pipes for relining, reopen junctions following CIPP installations and carry out targeted internal repairs safely and accurately. This technology minimises disruption, reduces costs and extends the service life of underground assets while keeping the pipeline in operation wherever possible.

Q. Can robotic cutting repair completely blocked pipes?

A. In many cases, yes. Robotic cutting can remove obstructions such as grout, concrete and other solid deposits that have caused a blockage. 

Where access is restricted or the blockage is particularly severe, a combination of Ultra High Pressure Water (UHPW) and grinding can often be used to complete the required rehabilitation works. This combination of UHPW and robotic cutting provides an effective trenchless solution for even the most challenging pipeline blockages.

Our experienced operators assess each pipeline and select the safest and most effective combination of technologies to restore the asset while minimising disruption and avoiding unnecessary excavation.

Q. What is Pipe Lining?

A. Pipe lining is a trenchless rehabilitation method used to repair damaged or deteriorated pipelines from the inside without the need for excavation. A resin-impregnated liner is inserted into the existing pipe and then cured using ultraviolet (UV) light or other curing methods, creating a new structural pipe within the original pipeline.

The new liner seals cracks, prevents water infiltration, restores structural integrity and significantly extends the service life of the asset—often by 50 to 100 years. Pipe lining is suitable for a wide range of sewer, stormwater, culvert and industrial pipelines and is an efficient, cost-effective alternative to traditional pipe replacement.

At Draintech Solutions, we specialise in advanced UV-CIPP lining systems that deliver durable, high-quality repairs with minimal disruption to surrounding infrastructure, traffic and the environment.

Q. Is pipe lining a structural repair?

A. Pipe liners can be engineered to provide a fully structural repair, creating a new pipe within the existing pipeline. Depending on the condition of the host pipe and the project requirements, the liner is designed to withstand the required internal and external loads, restoring structural integrity while sealing cracks, preventing infiltration and protecting against further deterioration.

At Draintech Solutions, every lining solution is supported by detailed engineering design to ensure the liner is manufactured with the appropriate thickness and structural properties for the specific application, delivering a long-term rehabilitation solution with a design life of up to 100 years.

Q. What is a Sectional Repair or Pipe Patching?

A. A sectional repair, also known as pipe patching, is a trenchless rehabilitation method used to repair isolated defects within a pipeline without relining the entire length. A resin-saturated fibreglass or felt patch is positioned precisely over the damaged section using an inflatable packer and cured in place to form a durable, watertight repair.

Sectional repairs are ideal for treating localised defects such as cracks, fractures, displaced joints, infiltration, root intrusion and minor structural damage. They restore the integrity of the pipeline, prevent further deterioration and extend the service life of the asset while avoiding the cost and disruption of excavation or full-length pipe lining.

At Draintech Solutions, we utilise industry-leading sectional repair systems that provide a fast, cost-effective and long-lasting solution for targeted pipeline rehabilitation across sewer, stormwater and industrial assets.

Q. Are liners and repairs installed by Draintech Solutions approved for use on Transport NSW projects?

A. Yes. Draintech Solutions installs SAERTEX UV-CIPP lining systems, Epros sectional repair systems, Quick-Lock stainless steel repair systems and MagmaFlex structural repair systems, all of which are approved for use on Transport for NSW (TfNSW) projects in accordance with applicable TfNSW requirements.

Our team has extensive experience delivering trenchless rehabilitation works across major transport and rail infrastructure, including projects for Transport for NSW, Sydney Trains and other critical infrastructure asset owners. All installations are carried out by trained and certified personnel using manufacturer-approved materials, equipment and installation procedures.

Where required, we can provide evidence of relevant product approvals, technical documentation and project-specific quality assurance records to demonstrate compliance with client specifications and applicable standards.

Q. What is a Lateral Connection Repair?

A. Lateral connection repair is a sectional repair method for defective sewer pipes and is used in ‘no-dig’ applications. A packer carrying a resin-wetted ‘hat profile’ is pushed pulled to the point of repair, of which the exact position is determined beforehand by CCTV inspection. When positioned at the point of repair, the packer is inflated and the retracted finger extends towards the lateral junction and is forced against the host pipe of the junction. Resin migrates into the defective areas creating a permanent bond between the fibreglass and the host pipe. The hat profile seals the space between the two pipe systems with its rim, while the liner in the main pipe functions as a short liner. Following cure of the resin, the packer is deflated and the packer removed from the pipe. The repaired section is inspected and using CCTV camera and a leakage test performed.

Q. What water systems is relining suitable for?

A. Relining is suitable for repairing sewer, stormwater, cold and hot water services, trade waste, potable water, flow and return hot water systems, gas services, fire hydrants and systems, sprinkler systems, HVAC and any piping system or fluid transfer system. Our systems can be used in almost every type of material from pipe sizes ranging from 12mm to 1000mm or larger.

Q. Does Draintech Solutions offer a warranty on lined pipes?

Yes. Draintech Solutions provides a standard 12 month construction warranty on our pipe lining installations.

In addition to our installation warranty, the engineered liner systems we install are designed to provide a service life of up to 100 years when correctly designed, installed and operated under normal service conditions.