If you’re considering installing a tank, the water tank type you choose is one of the most important decisions. Each water tank type has different strengths, costs, and uses depending on your property, location, and water needs.
For a step-by-step guide on looking after your system, check out our article on how to clean a water tank.
Common Water Tank Type Options in Australia
Poly Water Tank Type
A poly water tank type is lightweight, affordable, and resistant to rust and corrosion. Made from durable polyethylene, it’s the most popular option for Australian homes.
Best for: Small to medium households, gardens, and residential use.
Steel Water Tank Type
The steel water tank type (such as galvanised or Zincalume®) is known for strength and durability. Many come with an internal liner to protect water quality.
Best for: Large properties, farms, and commercial storage.
Concrete Water Tank Type
A concrete water tank type is extremely durable, fire-resistant, and suitable for underground installation. It keeps water cool naturally and lasts for decades.
Best for: Permanent installations, rural areas, and bushfire-prone zones.
How to Choose the Best Water Tank Type
When selecting a water tank type, think about:
Intended use – household supply, garden irrigation, livestock, or backup storage.
Available space – slimline or underground for small lots, large round tanks for rural properties.
Climate – bushfire-prone or very hot regions may benefit from concrete or steel.
Budget – installation and maintenance costs vary with each water tank type.
For more tips on sizing, read our guide on water tank sizes in Australia.
Final Thoughts on Water Tank Type
No single water tank type is best for everyone. It depends on your property, climate, and water requirements. By weighing your options carefully, you can choose a water tank type that will deliver reliable water storage for years to come.
For more information on safe water use and rainwater harvesting, you can visit NSW Health’s rainwater advice or the Australian Government’s Your Home guide.
