About Us

Over 30 Years of Manufacturing Experience

SLIMLINE TANKS is committed to manufacturing the very best rainwater storage tanks available. This commitment to unsurpassed quality has resulted in the constant growth of the company since 1982.

Curving a Colorbond Slimline Tank

Some of our proud company achievements

We invented the 'slimline' shape

Slimline Tanks invented the slimline shape of watertank – now accepted as the ‘norm’ for domestic use.

First to achieve Watermark Certification

Slimline Tanks were the first Colorbond Steel Tank manufacturer to achieve Watermark Certification & Engineering – now required to be eligible for government rebate schemes.

Fully compliant to Australian Standards

Each of our tanks are compliant to AS1170, ATS5200, AS4100, AS4600 & AS 4020.

We developed the 'squared' shape

Slimline Tanks developed the now popular Slimline Squared tank design.

Our Slimline Steel Water Tanks are Watermark Approved Tanks

Watermark Approved

Our tanks are certified to ATS 5200.026 standards – proof of a tried and trusted tank design.

Our Slimline Steel Water Tanks use Genuine BlueScope Steel on all our Tanks

Genuine BlueScope

Our tanks are manufactured using BlueScope Steel and high-strength Henrob rivets, and sealed with approved food-grade silicon.

Our Slimline Steel Water Tanks use COLORBOND® Aquaplate Steel on all our Tanks

Colorbond Aquaplate

Our tanks are built with a specialised material from Bluescope Steel called Aquaplate which has a polymer lining that's safe for drinking water.

Our Slimline Steel Water Tanks are Australian-made in Gippsland, Victoria

Australian Made

Each of our water tanks are individually produced in Gippsland, Victoria, under a strict quality control system.

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