Description
With a massive 320,000 litre capacity, this galvanised steel water tank is engineered for large-scale water storage needs in rural, industrial, and commercial environments throughout New South Wales. It’s commonly used for stormwater retention, mining operations, agricultural supply, and emergency water reserves.
Built with corrugated galvanised steel walls and roof panels, and reinforced with hot-dipped galvanised roof trusses, this tank delivers corrosion resistance and structural integrity. It includes a heavy-duty polyethylene liner that complies with AS/NZS4020 standards for potable water, offering a safe and durable storage solution for drinking water when used with appropriate filtration.
No sacrificial anodes are required, keeping long-term maintenance to a minimum. Once constructed onsite, the tank is ready for immediate plumbing and integration into your existing system.
Key Features:
Capacity: 320,000 Litres (70,400 Gallons)
Dimensions:
- Diameter: 13.78 metres
- Wall Height: 2.22 metres
- Total Height: 2.83 metres
Construction:
- Corrugated galvanised steel body and roof
- Hot-dipped galvanised steel roof trusses
- Food-grade polyethylene liner (AS/NZS4020 compliant)
Included Components:
- Galvanised external ladder
- Lockable manhole cover
- Geotextile underlay base
- 355mm inlet leaf strainer
- 100mm galvanised overflow
- 50mm outlet with metal ball valve
Finish Options:
- Classic galvanised steel finish
- Optional Colorbond® colours available
Installation:
- Assembled onsite by experienced installation team
- Requires level base prepared prior to delivery
- Ready for plumbing and use after completion
Applications:
- Large-scale rainwater harvesting
- Industrial water supply and processing
- Agricultural and irrigation systems
- Fire protection water reserves
- Stormwater detention for commercial sites
This is one of the largest tank sizes available, offering exceptional capacity for high-demand storage scenarios across New South Wales.
For technical support or installation advice, contact Wollombi Real Estate on (02) 4998 3219.








