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Introduction to Pipe Relining and How it Handles Bends

Pipe relining, utilising trenchless technology, rehabilitates existing pipelines without the need for excavation or pipe replacement by inserting and curing a resin-saturated liner within the damaged pipe.

A major advantage of our pipe relining solutions is their seamless navigation through pipe bends, with special Cured-in-Place Pipe (CIPP) liners that conform to the original pipe’s shape, ensuring a precise fit even around elbows and joints.

A detailed inspection using CCTV camera equipment is conducted to ensure that the liner materials and process will successfully navigate the existing pipe bends.

This guide outlines the steps of the relining process and bend management, demonstrating our proficiency in tackling complex bends in pipelines.

Understanding the Pipe Relining Process and Technology Used

The pipe relining process comprises the following critical stages, executed by specialised technicians:

  1. Initial CCTV Drain Inspection: A comprehensive inspection with a camera identifies pipeline damage, diameter, material, bends, and access points, pinpointing blocked drains, and enabling customisation of the liner.
  2. Cleaning and Preparation: To ensure liners adhere correctly and free up blocked pipes, we utilise high-pressure water jet technology to cleanse the pipe interior, removing obstructions or tree roots in the process.
  3. Resin Saturation: The custom made CIPP liner is vacuum-impregnated with a durable resin solution before insertion, enhancing the pipe’s structural integrity once cured in place. Resins give strength and rigidity once cured.
  4. Liner Insertion: The flexible liner is inserted into the damaged pipes through access points like manholes. Air or water pressure eases it through the system.
  5. Curing: Hot water, steam or UV light cures the resin-saturated liner for several hours depending on pipe material and diameter, moulding it to the host pipe.
  6. Final CCTV Inspection: We confirm an even cure and a smooth interior finish ready for service. Any accessories like lateral connections are reinstated to complete the process.

Modern Sydney pipe relining uses sophisticated CIPP materials and resins suitable for pipes 40-300mm in diameter, covering lengths up to 200m, with minimal effect on flow rates. Long-term durability and performance are ensured by the use of superior polyester and epoxy resins.

Traditional Pipe Replacement Methods vs. Trenchless Pipe Relining

Pipe relining minimises property damage and disruption, often completing in days rather than weeks.

Trenchless pipe relining, a method of structural reinstatement from within existing pipes, is offered by Inner West Plumbing. It involves minimal excavation for access only, leading to:

  • Significantly lower costs due to the elimination of materials and labour associated with digging and repiping.
  • Considerably quicker project completion, often within hours or days rather than weeks, with no mess or fuss involved.
  • Greatly reduced environmental impact with minimal waste generation.
  • Significant decrease in property damage and household disruption.

Our durable pipe relining solutions employ CIPP liners designed to last over 50 years, matching the strength of traditional methods. These relined pipes provide certified structural enhancement for long-term stability and performance.

So for a faster, cheaper and less invasive solution, ensure you call us at Inner West Plumbing to enquire about our trenchless pipe relining system for your Sydney property.

Addressing Complex Pipe Shapes and Bends with Bladder Tubes

Our installation technique effectively utilises an inflatable bladder tube to precisely reline bends and complex pipe arrangements.

The malleable CIPP liner material adeptly stretches and moulds into pipe systems with intricate layouts. Typical PVC, cast iron, clay and concrete pipes have bend radiuses ranging from 1.5 to 5 times the pipe diameter which our liners can conform to.

During installation, we carefully insert a deflated bladder tube into your sewer pipe along with the saturated CIPP liner and apply compressed air to ensure it adheres to the pipe walls. Air or water pressure is then used to inflate the bladder, pressing the surrounding liner material securely against pipe walls, into cracks and crevices, and around bends and elbows.

Once the liner is secured, it is cured with hot water or steam using high-quality materials, attentively fixing the damaged areas of the pipe while preserving the configuration of the original pipework. This creates a smooth, seamless and structurally sound relined pipe within the old bent pipe work layout.

So by utilising inflatable bladders during installation, our pipe relining systems prove that relining can smoothly traverse the horizontal and vertical bends found in residential plumbing, drainage and sewer systems, restoring integrity without the need for replacement.

Precise Measurement and Preparation Before Relining

Before starting any pipe relining project, our technicians take precise measurements of the pipeline layout using CCTV drainage cameras. Exact measurements of pipe diameters, materials, damage and bend radiuses are vital for customising the CIPP liner to each unique system.

We carefully map out your existing pipe network, marking bends, joints, changes in dimension and slope gradients. Specialist software accurately records all measurements for analysis. This meticulous preparation is a cornerstone of our pipe relining services, enabling our team to fabricate a tailored CIPP liner with the optimal resin volume and curing specifications to smoothly reline existing bends.

Our preparatory service also includes high-pressure water jet treatment and pipe patching to thoroughly clean pipe interiors prior to lining insertion. This removes old coatings, rust, grime and intruding roots which could impede proper liner bonding and curing, especially on bends.

By using state-of-the-art CCTV technology and software to comprehensively measure pipe systems, we highly recommend using custom CIPP liners engineered to traverse the complexities of real-world plumbing layouts. Our precision and attention to detail ensures optimal relining around all existing pipe bends.

Reconnecting Laterals after Relining Pipe Bends

Reconnecting all lateral connections, outlets, or junctions post-relining is essential to restoring the system’s total functionality.

Specialist technicians use remote-controlled robotic cutters to precisely reopen connections on the newly installed CIPP liner after curing. Plumbers carry out precision-guided manoeuvres using cameras along the length of the pipe to precisely match the locations of existing connections.

We then seal and reinforce reopened laterals with resin and patching plates to ensure their integrity over the long term. These patching systems can traverse various bend radiuses while providing high-pressure leakage protection; find out more about our custom solutions.

By methodically reconnecting all outlets and laterals throughout the system, we can guarantee restored performance, flow efficiency and reliability. Our teams check for smooth finishes with no obstructions or blockages.

So whether navigating pipe bends, multi-diameter transitions or complex junctions, Inner West Plumbing has the expertise to reconnect your entire plumbing system after trenchless relining for seamless ongoing service.

Comparing Relining Systems: Brawoliner vs Traditional Methods

The Brawoliner system is an advanced CIPP relining method offering key advantages over traditional liner installation processes when handling multiple bends and diameter changes.

Utilising inflatable bladders and specialised resin materials, our pipe relining team ensures Brawoliner liners can navigate intricate pipe layouts including vertical and horizontal bends with tight radii. The liners mould smoothly around elbows and transitions with diameters ranging from 100-600mm across pipe lengths exceeding 250 metres.

In comparison, traditional CIPP methods like epoxy liners have more limited bend and diameter change capabilities. The extensive heat and pressure required poses a risk to water systems, possibly leading to liner damage or resin delamination around complex pipe curves.

With more than a decade of experience, our method transcends traditional repair, with Brawoliner liners accommodating all types of pipes, ensuring long-term structural integrity and performance. Their flexibility, strength and curing consistency traversing various bend radiuses delivers reliable solutions without the need for pipe replacement.

So for superior remediation of your pipes across diverse piped systems, Brawoliner relining technology offers key advantages over traditional options.

Long-Term Reliability and Guarantees of Relined Pipes

Pipe relining is a durable solution that offers long-term reliability and structural soundness for sewer lines, with anticipated lifespans exceeding 50 years.

Once cured, CIPP liners provide fully certified structural enhancement, proving to be stronger than the original host pipe strength. Manufactured using top-grade polyester or epoxy resins under stringent quality controls, the materials are specifically engineered for lasting plumbing pipe repairs.

At Inner West Plumbing, we provide our clients with long-term guarantees for performance and workmanship on all Sydney pipe relining work. We offer assurances for our trenchless solutions in line with industry standards, catering especially to clients on the North Shore.

With over 20,000 metres relined, zero resultant failures, and our customers expressing 100% satisfaction, we take pride in the exceptional longevity of our pipe relining outcomes. They require virtually no ongoing maintenance yet retain full integrity against leaks, cracks, roots or blockages.

For trusted pipe rehabilitation with a lifespan of over 50 years, rely on the guarantees and reliability that Inner West Plumbing’s pipe relining service offers.

Cost Analysis: Pipe Relining vs Replacement

Opt for pipe relining as a cost-effective and less invasive method for upgrading your sewer system. Relining prices range from $130 to $250 per linear metre, offers cost-effective repairs, significantly lower than the $400+ per metre expense of replacing materials, excavation, and installation.

Factoring long-term savings from reliability and lifespan, pipe relining delivers major financial benefits to your property. With an expected 50+ year durability, the initial investment is returned many times over compared to pipes lasting only 20-25 years before needing replacement.

We also offer long-term guarantees on our trenchless pipe relining workmanship. When weighing upfront costs against the ongoing savings and assurances over decades, pipe relining, as a repair method, clearly provides superior value for money.

Contact Inner West Plumbing today, and allow our team to present the most cost-effective options for your pipe reinstatement needs. With more than two decades of industry experience, we encourage you to receive a quote today to reline your drainage, sewer, and plumbing systems, thus saving thousands in replacement costs while adding 50 years to their life.

Environmental Impact Comparison

Pipe relining has significantly less environmental impact compared to traditional pipe replacement methods. Key benefits include:

  • Lower carbon emissions - eliminates the use of excavators or heavy machinery, thus decreasing transportation-related pollution
  • Decreased energy consumption - Relining systems require significantly less energy compared to traditional digging and repiping
  • Minimal waste production - Existing pipes are utilised, producing negligible construction waste
  • Preserved landscaping - Gardens, lawns, and land features remain untouched during the relining process

Pipe relining strengthens the current infrastructure without upheaval, fortifying what already exists. This approach eliminates the requirement to manufacture and transport new piping, highlighting the non-invasive benefit of relining. It also avoids sending old piping to landfill.

By opting for sewer pipe relining instead of replacing pipes, habitat destruction is also minimised. Mature trees, plants and turf can remain intact rather than being cleared or damaged at excavation sites.

Requiring only one access point for insertion and curing, pipe relining operates as an eco-conscious infrastructure repair method. This trenchless process leaves a negligible environmental footprint relative to traditional pipe replacements.

As environmental leaders in pipe remediation, Inner West Plumbing is proud to offer Sydney homeowners long-lasting pipe repairs with minimal impact on the surrounding environment.

Answering Common FAQs about Pipe Relining

Here are answers to some frequently asked questions about relining sewer pipes:

What types of pipes can be relined?

Relining is suitable for various pipe materials including PVC, concrete, clay, iron, and asbestos cement, maintaining the integrity of your plumbing system. Including gas services, we can apply our expertise to both residential and commercial systems, rehabilitating blocked drains pipe effectively.

How effective is relining for tree root intrusion?

Our preparation techniques, including high-pressure water jetting, clear roots and debris, and our custom-fit liners create a new, smooth pipe wall that deters roots.

Can you reline pipes with 90 degree bends?

Yes, our specialist CIPP liners flexibly mould around bends with radii down to 1.5 times the diameter, ensuring the pipe can adapt seamlessly. Precise CCTV inspection enables customisation for each pipe system.

How long does pipe relining take?

Most residential drain repairs complete within 1-2 days without digging, minimising disruption to your property. Commercial projects vary based on size. There is no need for digging up pipes or halt business operations.

What are the limitations of pipe relining?

A severely damaged, badly offset, or collapsed pipe may require a more comprehensive point repair approach. We conduct thorough CCTV inspections beforehand to design an optimal sectional repair plan.

For any inquiries or to seek further clarity, call our seasoned experts who can provide tailored advice regarding your pipe relining needs in Sydney.

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