Round Tanks

A circular water tank is a better design for a water tank as a round shape is geometrically stronger than a square shape. A round tank has no structural weak points, whereas a square tank has the edges. Also, a round shape is aerodynamic and the wind will bend around a round tank, whereas it will hit flat surfaces and provide unnecessary exterior pressure. Roto moulding in round shapes empirically results in a stronger tank by design.

A round shape is the best design for a water tank as round shapes are the strongest geometric shape and evenly distribute force.

Most water tanks are round because a round tank is a stronger tank by design. Round shapes spread force evenly and do not have weak points, whereas as square tank would be weak around the edges.

Circular tanks have many advantages, such as being a strong geometric shape that spreads force evenly. Also, round tanks are aerodynamic, which means wind bends around the circular exterior unlike a rectangular or square tank, which will take the wind at full force on its flat surfaces, potentially damaging the tank over time or moving/tipping the tank.

Rainwater tanks are usually round because round shapes are geometrically stronger than shapes that have edges. The circular shape is stronger and therefore provides a longer tank life.

The main difference between a circular tank and a rectangular tank is that the circular tank is geometrically stronger and will last longer.

There is no real standard water tank size. It is dependant on the application and water storage requirement. A very common water tank size is 5000 gallons, which is 22,500 litres. It is one of the most popular sizes of water tank in Australia.

The more water the better for a family of four. This is a question that has many variables, such as how many times a week do you use a washing machine, how many times a day is the dishwasher run, how many times a day does the toilet get flushed. Also, is the tank being used for a garden and indoor purposes? There is no one size fits all when purchasing a tank, however we have a handy water tank calculator that can assist with determining an appropriate size of water tank.

Poly tanks are significantly cheaper than steel tanks as they are usually made in a single piece and lighter to transport compared to steel. Plus, steel tanks need to be constructed onsite by qualified installers which means this cost needs to also be factored in.

There are many shapes of water tanks that can be found. However, a round or circular water tank is recommended as it is one of the strongest geometric shapes.