How many litres of water can you harvest per year ?

Roof Area m2
Annual Rainfall mm

You can find answers to frequently asked questions regarding Rhino Tanks below. Should you have additional questions for us, please don't hesitate to get in touch with us through our contact form.


What Size Water Tank Do I Need?

If you are installing your water tank to collect rainwater then you will need to work out your catchment area (roof area) and find out your average annual rainfall. Then use the ‘Water Catchment Calculator’ link on the left of this page to work out approximately how many litres of water you can catch per year. Obviously, the household water consumption varies considerably for everyone but as a guide, an average family of 4 with a small garden use approximately 280,000 - 300,000 Litres per year for general household use.


Is the Liner Safe for Drinking Water?

Yes. Our liners pass all the Australian and International standards for potable liners. Polyethylene and Metallocene are generally recognised as the most stable and safest food grade materials available. See the tank liners page for more information on our INFINITY liner.


Does Rhino Offer the Full Range of COLORBOND® Colours?

Yes. Your new Rhino Water Tank is available in every available genuine Bluescope COLORBOND® steel colour.


Are Rhino Tanks Australian Made Water Tanks?

Yes. All Rhino Water Tanks are made in Australia. We use Bluescope Steel and are the only tank company that fabricate our reinforced tank liners in our own factory. This means we can control the quality of the product from manufacturing to installation.


Can I Collect the Rainwater Off the Roof of My Water Tank?

Yes. Rhino offers Rainsaver Caps that can be installed around the circumference of the tank roof and the water flows down the roof corrugations, through the Rainsaver Cap screens and into the tank. Unlike other roof harvesting systems, this option allows you to collect the tank roof water whilst keeping your tank sealed from dust, insects and other vermin.


What are Sacrificial Anodes and Why Do I Need Them?

Sacrificial Magnesium Anodes are used to prevent corrosion on your tank. The Magnesium is a weaker metal than the ZINCALUME® or COLORBOND® steel tank shell, therefore the anode becomes the first defence against corrosion if electrolysis starts to occur. Correct installation and Rhino’s 5 year maintenance program is therefore imperative to ensure your tank is kept in prime condition.


Are the Tank Trusses Hot Dipped Galvanised for Added Strength and Durability?

All the trusses used in the installation of a Rhino Water Tank are hot dipped galvanised ensuring protection from condensation corrosion.


Can I Get a Rebate/Grant for My Water Tank?

From time to time both State and Federal Governments offer rebates and grants for the installation of water tanks. These rebates and grants are often dependant on your specific location and also the intended usage of the tank. Due to these variations it is best to make contact with your local authorities to see if any rebates or grants are available.

Customers in Victoria can find out about rebates in their area here