20,000 Litre Water Tanks

Looking for a 20,000 litre water tank for a domestic, rural or commercial purpose? Heritage Water Tanks can help.

We are an Australian-owned company which specialises in premium quality steel water tanks for any application.

Get a free quote today, just click the button to fill out the form below.

Is a 20,000L tank right for you?

If you have limited space, then a 20,000 litre water tank might be the most practical option for you. Alternatively, two or more 20,000 litre tanks may be a better and more secure water storage solution than one larger tank, in situations where there is limited space or site constraints.

You should also factor in the roof catchment area of your home, shed or property. To calculate the amount of water that your roof can collect, get hold of the average yearly rainfall in mm in your city or region. Multiply this number by however many square metres of roof you have. 1 mm of rainfall on 1 square metre of roof provides catchment of 1 litre of water. Use our Rainwater Harvest Calculator HERE as a guide.

You should also take into account how much water you use each day. In smaller households with low irrigation needs and no swimming pool, a 20,000 L tank is often the right choice for bore water storage. In agricultural settings, a 20,000l tank may be all you need to store water for stock water or water pumped from a dam. Our sales staff will help you calculate the tank capacity that best suits your needs.

Why a Heritage Steel Water tank is the better choice for smaller volumes

Heritage Water Tanks can be easily transported flat packed to a diverse range of sites. This is not always the case for Poly tanks which can be awkward to transport. Bluescope Steel tanks are also much stronger, more fire resistant and longer lasting than Poly tanks, because they are made from premium quality, corrosion resistant materials. In fact, Heritage steel water tanks come with a 20-year warranty whereas many Poly tanks only have a 10 to 15 year warranty.

Another superior feature of our tanks is the Heritage Water Tanks have high quality ARMA Fresh Liners, which ensures that the tank water stays healthy and pure at all times.

What’s more, customers can choose either corrugated or streamline profile designs for their tanks, along with a range of COLOURBOND® colour options to ensure that the tank looks good in its surroundings.

Water conservation is more important than ever in Australia, with many regions experiencing drier than ever conditions. Investing in quality water storage solutions to guarantee future water security is a very smart move. To speak to our sales team about the right water tank size for you, call us now on our free-call number 1800 115 552.

Other advantages of Heritage Water Tanks

With declining rainfall around Australia, it has never been so important to ensure that you have water security, by investing in adequate water storage facilities. To find out how much water you will be able to collect from your roof, first find out the average annual rainfall in mm in your area. Multiply this by the number of square metres on your roof. 1mm of rain on one square metre of roofing gives you 1 litre of water catchment. See our Rainwater Harvest Calculator HERE.


Heritage Water Tanks also have an innovative water collecting gutter option. This can be installed as an optional extra, in order to help you to collect rainwater falling onto your tank’s roof, thereby capturing considerably more rainfall than standard tanks. The new Rainwater Harvesting Gutter Technology was designed and manufactured in Australia using BlueScope Zincalume® or COLORBOND® Steel. This unique system allows you to collect 100% of the rain falling on your tank roof without compromising its capacity. SEE MORE

If you would like to talk to one of our Sales Advisors about our water tank sizes and capacities, Please call 1800115552

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