Underground Tank & Line Testing

Prevent Fuel Leaks, Reduce Downtime and Environmental Risk

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  • Servicing:
  • Australia
  • Malaysia

We Are The Market Leader in Fuel Asset Integrity Testing

Flowco technician conducting precision tank testing on underground storage system at a petrol station

Underground fuel systems may be out of sight, but they should never be out of mind. Proactive tank and line testing is essential to understand the condition of your fuel infrastructure and detect leaks early. It not only helps you meet environmental compliance; it ensures reliable fueling operations, protects fuel quality and extends the life of your fuel assets.

As one of the largest fuel asset management companies in Southeast Asia and Australia, Flowco Australia brings over 30 years of experience delivering leading fuel integrity solutions across retail, commercial and industrial sectors.

With the industry’s most experienced, fully certified technicians, advanced technology and a dedicated team of specialist engineers and customer service professionals, we’ve built a reputation for exceptional support and unmatched technical expertise. That means we can diagnose virtually any fuel system integrity issue – no matter the location, complexity, or setup. 

If your tank system has a leak, we’ll find it and fix it.  

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New Installation Tank and Line Testing

New Installation Integrity Testing pre and post bury tank testing to ensure systems meet AS1940

New Installation Tank and Line Testing

Flowco Australia provides specialist installation testing services for new fuel system installations, ensuring tanks, lines, and associated fuel infrastructure meet compliance and safety standards from…

UPSS Precision Tank & Line Testing

UPSS Precision Tank & Line Testing

UPSS Precision Tank & Line Testing

Flowco Australia specialises in tank testing for underground petroleum storage systems, delivering industry-leading precision and compliance assurance. Our UPSS Precision Tank and Line Testing service…

Troubleshooting Water Ingress & Product Loss

Troubleshooting Water Ingress & Product Loss

Troubleshooting Water Ingress & Product Loss

Water ingress and product loss are two of the most critical challenges for underground petroleum storage systems, and they are directly linked to tank integrity.…

Groundwater Monitoring

Groundwater Monitoring

Groundwater Monitoring

Protecting groundwater around underground petroleum storage systems is a critical compliance requirement for Australian fuel retailers. Leaks from tanks, lines, or fittings can migrate quickly…

Vapour Recovery Certification (VR1 & VR2)

Flowco technician repairing a fuel dispenser circuit board to restore pump performance addressing Electrical and Communication Issues

Vapour Recovery Certification (VR1 & VR2)

Vapour recovery systems are an essential part of modern petrol station operations, capturing harmful fuel vapours that would otherwise be released into the atmosphere. In…

New Installation Tank and Line Testing

New Installation Tank and Line Testing

Flowco Australia provides specialist installation testing services for new fuel system installations, ensuring tanks, lines, and associated fuel infrastructure meet compliance and safety standards from day one. Our precision testing methods verify system integrity under both wet and dry conditions, detecting even the smallest leaks before the site goes live.

Pre-bury testing plays a critical role in ensuring the long-term integrity of a new fuel system. By conducting testing before tanks and lines are backfilled, any leaks can be identified at a stage when they are straightforward and cost-effective to repair. This proactive step prevents hidden issues from being buried beneath concrete or soil, where repairs would become significantly more complex and expensive. Post-bury testing then provides final assurance that the system has remained leak-free after installation, confirming compliance and giving confidence that the site is safe and ready for operation.

Post-bury testing is just as vital, as it ensures that no damage has occurred during the backfilling process and that the system remains fully intact before commissioning. This stage confirms that tanks, lines, and connections have not been compromised by settlement, compaction, or handling during installation. Just as importantly, post-bury testing verifies compliance with Australian standards such as AS1940, giving regulators, contractors, and site owners the assurance that the installation meets all legal and environmental obligations before fuel is introduced.

Choosing Flowco Australia for your installation testing means safeguarding your investment, preventing costly delays, and achieving full environmental compliance with confidence.

Ready to Get Started?

Contact our experts today for a free consultation and quote tailored to your specific needs.

📞
Phone 1800356926

UPSS Precision Tank & Line Testing

UPSS Precision Tank & Line Testing

Flowco Australia specialises in tank testing for underground petroleum storage systems, delivering industry-leading precision and compliance assurance. Our UPSS Precision Tank and Line Testing service uses advanced volumetric methods to detect even the smallest leaks, providing results that far exceed regulatory requirements. Unlike vacuum or acoustic testing, our technology delivers repeatable results under both wet and dry conditions, ensuring tanks and lines remain fully compliant with Australian standards.

Regular tank testing not only prevents costly product loss and environmental damage but also protects your business reputation by demonstrating a strong commitment to safety and compliance. By partnering with Flowco, fuel retailers and site operators gain accurate, defensible data that ensures long-term system integrity and environmental protection.

Read more: Tank Testing in Australia – Accurate, Fast, and Beyond Compliance

Ready to Get Started?

Contact our experts today for a free consultation and quote tailored to your specific needs.

📞
Phone 1800356926

Troubleshooting Water Ingress & Product Loss

Troubleshooting Water Ingress & Product Loss

Water ingress and product loss are two of the most critical challenges for underground petroleum storage systems, and they are directly linked to tank integrity. Even minor water entry can cause microbial growth, corrosion, fuel contamination, and costly equipment damage. Product loss, whether from leaks, seal failures, or compromised pipework, not only reduces profit margins but also creates serious compliance and environmental risks.

Flowco Australia’s tank testing and diagnostic services are designed to pinpoint the cause of water ingress and product loss with accuracy and speed. Our precision volumetric methods go beyond basic inspections by verifying the integrity of tanks and lines under both wet and dry conditions. This approach allows us to identify hidden leaks, compromised seals, or vent issues that might otherwise remain undetected. Every test is conducted to exceed Australian standards, giving site operators defensible results that regulators and insurers can rely on.

By partnering with Flowco Australia, you gain more than just tank testing—you gain peace of mind. We help prevent water ingress before it leads to microbial contamination or rust, and we safeguard against product loss that can erode your bottom line. With Flowco’s industry-leading expertise, your underground fuel system remains compliant, protected, and operating at peak reliability.

Read more: Tank Testing – Detecting Manway Gasket Leaks and Preventing Water Ingress

Ready to Get Started?

Contact our experts today for a free consultation and quote tailored to your specific needs.

📞
Phone 1800356926

Groundwater Monitoring

Groundwater Monitoring

Protecting groundwater around underground petroleum storage systems is a critical compliance requirement for Australian fuel retailers. Leaks from tanks, lines, or fittings can migrate quickly into surrounding soils and water tables, creating significant environmental damage and costly remediation obligations. Regular groundwater monitoring ensures that any leaks are detected early, before they escalate into major compliance breaches or financial liabilities.

Flowco Australia provides specialist groundwater monitoring services for petrol stations across the country. We design and install monitoring wells around storage systems to create an early-warning network that identifies any hydrocarbon migration into the surrounding environment. Our team conducts scheduled sampling and analysis, using certified laboratories to test for petroleum compounds and confirm compliance with EPA and state-based environmental regulations.

More than just a compliance requirement, effective groundwater monitoring protects your brand reputation, minimises remediation costs, and demonstrates a proactive commitment to environmental stewardship. With Flowco Australia as your partner, you gain reliable data, professional reporting, and confidence that your site is safe, compliant, and environmentally responsible.

Ready to Get Started?

Contact our experts today for a free consultation and quote tailored to your specific needs.

📞
Phone 1800356926

Vapour Recovery Certification (VR1 & VR2)

Vapour Recovery Certification (VR1 & VR2)

Vapour recovery systems are an essential part of modern petrol station operations, capturing harmful fuel vapours that would otherwise be released into the atmosphere. In certain areas of Australia, service stations are required to meet strict vapour recovery standards (VR1 and VR2) to reduce emissions, improve air quality, and comply with state-based environmental regulations. Regular certification and testing are critical to ensure these systems are working effectively and remain compliant.

Flowco Australia provides specialist Vapour Recovery Certification and testing services to keep petrol stations operating within regulatory requirements. Our technicians conduct comprehensive VR1 and VR2 testing, measuring vapour capture efficiency and verifying that systems meet the performance benchmarks set by environmental authorities. Using calibrated equipment and industry best practice methods, Flowco delivers accurate results and detailed compliance reporting.

With Flowco’s expertise, service station operators can avoid costly penalties, protect staff and customer safety, and demonstrate their commitment to environmental responsibility. Whether it’s initial certification, annual testing, or troubleshooting system performance issues, Flowco Australia ensures your vapour recovery systems remain compliant, reliable, and environmentally sound.

Ready to Get Started?

Contact our experts today for a free consultation and quote tailored to your specific needs.

📞
Phone 1800356926

Leak Prevention, Fuel Quality and Compliance Assured

Flowco Install Day One
For new site installations, our experience shows that over 90% of new fuel sites we test during pre-bury have leaks. Post-bury, we find leaks on 3% of sites, usually caused by backfill damage, misplaced pickets or pipe stress during concreting. Our certified pre-bury and post-bury integrity testing ensures your system is 100% tight before concrete is poured, minimising long-term maintenance costs and protecting the total value of your underground fuel system over its operational life.
For businesses that rely on backup power, such as hospitals, data centres, industrial sites and commercial buildings, fuel quality and system integrity are critical. Fuel in tanks connected to generators (or gensets) often sit idle for long periods, leading to condensation, water ingress and contamination that can impact performance when power is needed most. Flowco Australia provides certified integrity testing for all generator environments to ensure your system is emergency ready. Our advanced testing detects leaks, water presence and potential failures early, protecting fuel quality and business continuity.
Flowco Australia deploys Leighton O’Brien’s world-leading tank and line testing system to provide highly accurate and reliable leak detection. Certified to stringent EPA standards, our technicians receive real-time data for immediate onsite diagnosis and digitally verified results. We can also simultaneously test tanks and lines, any fuel type and fill level, ensuring minimal disruption and complete confidence in your system’s integrity.