Water Tanks for Residential Supply

Pioneer Water Tanks - Rainwater Tanks for Residential Supply

The Importance of Choosing the Right Water Tank for your Home

Water is essential for human survival and is rainwater used for a variety of purposes such as drinking, cooking, bathing, and irrigation. Ensuring a reliable supply of clean water is therefore crucial for households. 

The most common method of harvesting, storing and accessing water for residential for those without access to mains water is through the use of rainwater tanks. Water tanks can be made from a variety of materials, and this includes steel tanks, poly tanks and concrete tanks. 

Steel water tanks have several advantages that make them a popular choice for residential water storage – particularly for those without access to town water, or looking to be self-sustainable – and Pioneer Water Tanks have been manufacturing and installing rainwater tanks for residential supply for more than thirty years.


Pioneer Water Tanks have provided a service for Western Australia since 1988. Our high quality Australian-made water tanks will provide the long-term water security you’re looking for.

Advantages of Steel Water Tanks

Durability and longevity

One of the main advantages of steel water tanks is their durability and longevity. Steel is a strong and sturdy material that can withstand harsh weather conditions and is resistant to cracking and breaking. Steel water tanks can last for several decades with proper maintenance, making them a long-term investment for households.

The Pioneer V-Lock® tank wall profile has been designed specifically for the purpose of water storage, and to put the steel where you need it most. Our confidence in this design is why were are able to provide a our 20/20 warranty on all tanks in our standard rural range. That’s a 20 year conditional structural warranty, and a 20 year conditional warranty against water leakage.

Many of the tanks built in Pioneer Water Tanks first year of business more than 30 years ago still stand today, and it’s this dedication to structural integrity that has made Pioneer Australia’s number one Big Tank Company.

two large zincalume water tanks installed on a rural Australian property

Low maintenance

Another advantage of steel water tanks is that they require minimal maintenance. Unlike other materials such as concrete or plastic, steel water tanks do not degrade over time and do not require frequent repairs or replacements. This makes them a cost-effective option for households in the long run.

While initially a rainwater tank is a significant investment, over the years – particularly if you factor rising cost of living – utilising a rainwater tank as your main water source over mains water supply can save you money on your water bills, and removes one more of your daily life worries from the picture.


Easy to clean and hygienic

Steel water tanks are also easy to clean and maintain good hygiene. Steel is a smooth and non-porous surface, which makes it easy to clean and prevents the accumulation of dirt, bacteria, and algae, while the inside of the tank is protected by your tank liner.

All Pioneer Water Tanks up to 280kL include our industry leading Aqualiner Fresh® antimicrobial water tank liner, which actively works from the inside of your rainwater tank to keep your household water supply free from algae and bacteria.

This is especially important if you intend to use your household water supply for potable or drinking water, and ensures you can have peace of mind regarding the quality of your tank water.

Zincalume water tank GT130 125000 litre water tank located in Henley Brook western australia
two large pioneer steel bushfire water tanks standing in front of the remains of eight melted poly water tanks after a bushfire

Fire Protection

While water tanks are frequently used for fire protection in industrial or commercial circumstances, such as hospitals, shopping centres and mine sites, they are also important in rural areas for fire fighting purposes.

Bushfire Protection

When it comes to bushfire protection, a water storage tank could make all the difference when fighting to protect your property. A steel water tank is the best choice in these circumstances, and outperformed all others in a CSIRO test performed in 2006.

It is crucial that fire fighting teams have access to water at all times to fight bushfires, and in a nation like Australia, bushfire protection has never been more important.

Water Tank Sizes for Residential Use

When choosing a steel water tank for residential use, it is important to consider the size of the tank. The size of the tank will depend on the water needs of the household and the availability of space for the tank. A larger tank may be more expensive to purchase and install, but it will provide a larger water supply and may require fewer refills. On the other hand, a smaller tank may be more suitable for households with limited space or lower water needs.

To determine the appropriate size of the your rainwater tank, consider the following factors:

  • Water usage: The amount of water used by a household can vary depending on the number of occupants and the type of activities that use water (e.g. bathing, laundry, irrigation). It is important to estimate the daily water usage of the household to determine the size of the steel water tank needed to meet these needs.
  • Rainwater availability: If the household relies on rainwater for their water supply, it is important to consider the amount of rainfall in the area and the size of the catchment area (e.g. roof size) to estimate the amount of water that can be collected. This can help determine the size of the steel water tank needed to store the collected rainwater.
  • Space availability: The size and shape of the area where the steel water tank will be installed should also be taken into account when selecting a tank. The tank should fit comfortably in the designated space and should not obstruct any pathways or utilities.
You can calculate your annual rainwater harvesting ability by multiplying your roof area in m² by your annual rainfall in mm. For example a 200m² home in an area with 800mm of annual rainfall would be able to harvest 160,000L of rainwater.

Pioneer Water Tank Sizes

pioneer water tank sizes and dimensions

The Litres/Gallons stated above are gross capacities. Actual useable volume will vary depending on the size and position of inlets and outlets.

Other sizes and measurements to consider

When installing a Pioneer Water Tank, it is recommended that the minimum size of the tank site be 2m wider than the tank diameter, leaving 1m of sand pad on each side of the tank. This means that for a GT110 – which is 8m in diameter – you would need a 10m diameter space to install the water tank.

The sand pad itself – which needs to be installed, level, stable and free of debris prior to construction – needs to be 150mm (minimum) thick of clean sand, and covered with aggregate after the tank has been installed, in order to prevent erosion and to comply with warranty conditions.

As for the location of your rainwater tank, it must be located at least 50cm below gutter height for every 100cm away from the downpipe it is situated, in order to ensure that it will fill correctly. 

Maintenance of Residential Rainwater Tanks

How to properly maintain a water tank

The most important aspects of water tank maintenance are reasonably simple. Ensure that any gutters or rainwater harvesting areas that lead to the tank are clean and free from debris or vermin. Ensure there are no trees or objects hanging over or interfering with the rainwater tank. Ensure that the water tank is being filled and emptied each year. It is also a good idea to check the leaf filter basket at the inlet of your water tank from time to time in order to maintain the cleanliness of your tank water.

Many large steel water tanks come with sacrificial anodes which need to be replaced over time, to ensure that your rainwater tank lasts its full service life by preventing corrosion.

Do you need to clean a water tank?

Typically no, for large tanks, or any tanks with food safe interiors or liners, as long as the rainwater harvesting areas are kept free of major debris. If you do need to clean your water tank, it is best to contact a professional to do so, in order to reduce the risk of damaging your rainwater tank.

Government agency Healthy WA suggests to inspect your tank every 2-3 years for the accumulation of sludge on the tank floor.

If your rainwater tank is used for non potable applications, such as watering your garden or aquaculture including fish, then you’re significantly less likely to need to clean your storage tanks.

Reliable Water Storage for your Home

Pioneer Water Tanks are designed to not only comply with, but exceed Australian standards for water storage, ensuring that your water tank is durable and long lasting, but also keeps your water fresh and clean for your family and pets.

If you’re interested in a water tank for your farm or home, or want some information or advice on how one of our award winning rainwater tanks could improve your household; give get in touch with us on 1800 999 599, or by simply clicking here to request a quote for a rainwater tank today, and one of our dealers will be in touch with your customised water tank pricing.

Frequently Asked Questions

Which water storage tank is best for home?

There is no one answer to this, as the majority of – if not all  – steel liner tanks and poly water tanks available on the market are made from food grade materials designed to safely interact with drinking water. It would be recommended not to install a concrete water tank for drinking, as they must be entirely emptied to be repaired, and can seep into your drinking water.

If you are looking for a water tank to use as your sole water supply, however, nothing compares to a steel water tank. With sizes up to 280,000L in the standard rural range, you’re able to harvest and store enough rainwater for your entire family in one water storage solution.

What size tank does a family of 4 need?

Pioneer Water Tanks would typically suggest a GT150, or 150,000L rainwater tank for a family of four, however this is simply a recommendation, and households can vary largely in their water usage.

The best way to calculate what size water tank you require is first to calculate how much water you use annually – at least roughly – and then aim a little bit higher than that. You don’t want to find yourself running out of water.

When it comes to how much water you can harvest, a simple rule of thumb is to multiply your rainwater harvesting roof area by your annual average rainfall, and you will be able to calculate the amount of rainwater you can harvest annually from there.

What are the benefits of using water tanks?

For many Western Australians, there is no alternative to using water tanks on their property, as they have no access to mains water, and rely on rainwater tanks for their way of life.

For those with access to mains water, however, there are many benefits. Rainwater is marginally better for your laundry, allows you to water your gardens and lawns year round, can reduce water bills and help save you money, and if thousands of rural folk across the state are to be believed; tastes far better than tap water.

Is it worth installing a water tank?

For many Australians, water tanks aren’t just worth it, but a necessity. For the more than half a million households in Australia who don’t have access to mains water, a rainwater tank for their house or farm is the only way to ensure they have reliable access to clean drinking water year round.

For households who don’t need rainwater tanks to survive, there are also many benefits, including; being able to more freely water gardens and lawns, saving money on water bills, or by coming completely self sufficient from scheme water if you have the space for a large enough water tank.

How much water do the average family use per day?

The average family of four uses approximately 1500 litres of water per day. This includes water used for drinking, cooking, washing dishes, bathing, laundry, and other household activities. 

In Pioneer’s more than thirty years of experience, we’ve found that you need roughly 30,000L of water storage for each person in living in the home, with additional water storage for fire protection, gardens or animals if required.