How to choose the best water tank size

Dec 08, 2022

According to, the biggest home features that use the most water are washing machines, toilets, taps, and showers. Through efficient water use, Australians can save up to $2 billion by 2030, with an estimated savings of $175 per household annually. A concrete water tank collects water during rainy days and winter months, allowing you to have a steady supply of water all year round.

This water tank can also be used for home systems such as dishwashers, multiple showers and toilets, sprinkler systems, garden irrigation, and more. In planning for the construction of your water tank, some of the important things to note are how much water your household consumes, how much water you can collect, and your overall budget.

Average water tank sizes and lifespan 

The size of residential or rural water tanks is around 90,000 to 120,000 litres. However, with most modern homes utilising more water and the extended drought brought about by climate change, one can never go wrong with having an extra water supply. 

Most water tanks last for 25-30 years, however, modern water tanks today are becoming more efficient, with manufacturers designing them to last for longer periods, with the goal of lasting a lifetime. 

How much water does your household consume?

To determine how much water your household uses, you can start by looking at your water bills. You can also look at how many people are in your home and their different water needs. Significant factors include having a large garden, having multiple bathrooms and toilets throughout the house, having several pets, and even a swimming pool.

How much water can you collect? 

To get an idea of how much water you can collect, you can check the average rainfall in your area. In Australia, this information is available on the Bureau of Meteorology website. Other things to consider are the different seasons and the seasonality of rainfall. 


The price of the concrete tank depends on different factors including the type of tank, your location, and the cost of materials like concrete. Companies like Next Gen Concrete Tanks can provide you with a free no-obligation quote if you plan to invest in a concrete tank.

Benefits of Concrete Tanks

The most important advantage of a concrete tank is providing a steady water supply. In addition to this, however, it’s also an advantage for homes to have quality concrete tanks that are equipped with the following features: 

  • 25-year guarantee to ensure durability and longevity
  • Compliance with Australian regulations including AS3600 and AS3735
  • Moulds with radius floors for twice the structural strength 
  • Inbuilt riser for underground applications for any depth and fittings to avoid dirt seeping in the water supply
  • Optional inbuilt gutter system that can collect up to 80k litres on its own of rainwater

Interested in getting a free quote or curious how Next Gen Concrete Tanks can help you with your tank needs for your home or business? Reach out to us today by calling 0455733861 or by sending us an email at

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