We can guarantee your installation is 100% tight

Installation testing

Leaks 2
T4 PULP 95 product line t-joint leak
Leaks 13

With today’s reformulated fuels with low sulfur and ethanol, perfectly tight storage systems are critical to prevent water ingress that causes numerous modern maintenance issues including rapidly multiplying biological activity, accelerated corrosion and contaminated product unfit for sale.

Of course, leakage always remains front and centre for storage tank operators. Our experience shows that 90% of sites that pass a gauge test have an installation issue.

Most storage system issues including water ingress, small leaks and weeps from pipes, fittings and vents stem from the date of the original site construction. Once concrete is poured, these issues are often too difficult to address, resulting in costly maintenance issues over the life of the asset.

Leighton O’Brien’s Installation Assurance Program conducts precision testing before concrete is poured. Any nuisance weeps and ingress sources are identified, repaired and eliminated before the site opens. And contractors always appreciate this confirmation on their work quality.

Our 2-stage pre-bury post-bury process guarantees a perfectly tight storage system, meaning zero water ingress, zero leakage, zero vapor loss from tank and line system breaches of any kind, and eliminates lower vapour emissions.

Leaks your current test may fail to pick up.

Key features & benefits

Certified as the fastest test: 3 mins for dry lines, 17.5 mins for wet lines

No construction delays so your sites are opened on time

100% of sites that pass our test remain leak free

How it works

Case study

An international oil company conducted mechanical gauge pressure test prior to backfill on a large network of recently installed retail fuel sites.

Changing regulations in the region and concerns over environmental impact guided the customer to Leighton O’Brien to confirm the integrity of their product lines with a precision line test.

Precision integrity testing subsequently revealed a quarter of the 440 sites had leaks which had all passed a gauge test at installation.


Almost 10% of their new product lines required excavation, repair and recommissioning, costing tens of thousands of dollars.

The problem could have been detected and repaired at a tiny fraction of this cost with a Leighton O’Brien Precision Installation Test during construction.

Leighton O’Brien delivers on every level. They beat the competition on accuracy, they deliver support and innovation that matches our own and they help us make a difference in our sector.

Keith Bevan, Group Business Development Manager
Suresite Group, UK

Adding fuel polishing and restoration to our product line through Leighton O’Brien is another valued service to address fuel quality issues. We are extremely pleased with the design and efficiency of the units and provides a professional platform that fits our model well.

Chris Biellier, Vice President
Seneca Companies – Environmental & Waste Solutions Divisions, USA

Leighton O’Brien is integral to our operation. We trust them to provide tank cleaning, testing and monitoring for our petrol stations around Australia. They are a smart engineering and technology company who I highly recommend.

Terry Lunney, Manager – Assets, Facilities, Construction
7-Eleven Stores Pty. Ltd.

Enquire about our service

Feel free to contact us with any enquiries and we’ll get back to you within 24 hours. For an office or distributor, please locate them via Find Us on our Contact page.

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