fax: (02) 49 522 644 sales@unitanks.com.au
Manufacturer of
  • Made to measure steel water tanks
  • groBED raised garden beds
  • groTUB planters and storage tubs

PO Box 3570 Hamilton DC NSW 2303
ph 1300 650 489 fax (02)49 522 644
Email: sales@unitanks.com.au

Why choose a steel Water Tank?

When looking for a water tank you have many options available to you. Steel and polyethylene are the most common followed by fibreglass, concrete and now PVC bladder tanks.

Each material type has its strengths and weaknesses but we believe the modern steel tank has the best features of all tanks currently available. Here’s why........

Strength of steel
Steel tanks do not bulge or stretch when full. The strength of steel means the tanks comfortably hold the large forces generated by tonnes of water. Steel tanks have been around for more than 100 years so the structural long life is a proven fact. In addition this strength will not deteriorate over time under the harsh Australian sun as with other materials.

Long life
In the early days steel tanks where just plain galvanised steel and after many years could begin to rust from the inside. This is a thing of the past with modern tank steel which has a long life polymer coating. This polymer coating is on the inside of the tank walls and on both sides of the base (inside and out). The water never touches the steel and now the tanks carry a 20 year warranty against corrosion! The strength of steel and the longevity of polymer coating.........best of both worlds.

The Litre-Meter

How much will it hold?

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Style: Slimline Round
Width Length Height

Unitanks Watertanks Style and elegance
The steel tank not only looks traditional and Australian but it is less bulky than other alternatives. This is especially noticeable in the slimline format where polyethylene tanks typically are much larger for the same capacity due to moulded cross strengthen taking away from storage capacity. The same applies for the round tank where the flatter roof structure means more water right to the top of the tank compared to the unused air gap in the domed roofed plastic tanks.



Did you know....

  • Rain water tanks made from AQUAPLATE® steel have the lowest overall environmental impact.
  • Compared to concrete and HDPE rain water tanks, AQUAPLATE® steel has the lowest embodied energy, GGE and SOx emissons.
  • Water tanks made from both AQUAPLATE® steel and HDPE performed similarly in terms of water and NOx environmental burdens, outperforming concrete tanks.
  • Compared to a tank made from AQUAPLATE® steel, there is 50% more steel in a concrete tank as part of the structural reinforcement.
  • The annual environmental burden of a water tank made from AQUAPLATE® steel is equivalent to one 100W light bulb switched on for approximately one week.

Source Reference - BlueScope Steel Australia: Rain Water Tanks - Life Cycle Analysis



Please contact us for an obligation free quote and you can be on the way to harvesting your rainwater.