A COMPREHENSIVE GUIDE TO WATER TANK MATERIALS: MAKING THE RIGHT CHOICE FOR YOUR NEEDS

Tanks are multifunctional storage containers designed for long-term storage of various materials like water, oil, hazardous waste, and chemicals, within residential and commercial environments. Each type of tank, however, serves a distinct purpose, with its functionality closely tied to the materials used in its construction.

Water storage tanks, for instance, come in various configurations; they may be pressurized or non-pressurized, and can even be installed underground. Unpressurized tanks, commonly referred to as atmospheric tanks, are designed to maintain storage at atmospheric pressure. In contrast, the water supply tank for a residential property typically operates as a pressure tank, characterized by its hermetic seal, ensuring an airtight environment.

Here we list the materials used to manufacture some of the most common tanks, the material best suited for manufacturing water storage tanks.

  • Underground Fibreglass Tanks – As the name implies, these underground tanks are made of corrosion-resistant fibreglass. Because of its versatility, fibreglass is used in a wide range of commercial applications.
  • Carbon Welded Steel Tanks – Carbon welded steel tanks are used for water storage. These tanks are strong and long-lasting, and they are not affected by Lyme disease leaching.
  • Above-ground Storage Tanks – These are made of either concrete or fibreglass. Above-ground storage tanks may not have a large storage capacity, but they do the job well. They are typically used to store caustic water, which includes waste, potable, and rainwater.
  • Polyethylene Tanks – These are made of plastic and are ideal for those on a tight budget who do not require a large capacity tank. One common application for polyethylene tanks is rainwater collection.
  • Stainless Steel Water Storage Tanks – These tanks are made of stainless steel, as the name suggests. Without a doubt, these tanks are among the most versatile tanks on the market today.

Why Material Matters in Water Tank Storage?


– Water Quality: The choice of tank material is crucial in ensuring that the stored water remains clean and safe for consumption. Some materials, such as stainless steel and polyethylene, are corrosion-resistant and non-reactive with water, thus preserving water’s purity. Inferior materials may leach harmful substances into the water, compromising its quality.

– Durability: Apart from water quality, the durability of the tank material is another vital consideration. Different materials exhibit varying levels of durability. For instance, concrete and stainless-steel tanks are highly resilient and can withstand harsh environmental conditions. In contrast, tanks made from other materials may degrade over time. Opting for a durable tank ensures a longer lifespan and lowers replacement costs in the long run.

– Maintenance Requirements: The material you choose also affects maintenance needs. Tanks made from certain materials, like concrete, may require regular sealing or coating to prevent cracks and leaks. In contrast, low-maintenance materials such as stainless steel and fibreglass reduce both the time and cost associated with upkeep.

– Cost: Cost is often a significant consideration in any project. While some materials may have a higher upfront cost, they often provide better overall value due to their durability and lower maintenance requirements. Therefore, it’s essential to weigh the initial cost against long-term expenses when selecting the tank material that suits your specific requirements.

– Environmental Impact: In today’s environmentally conscious world, it’s crucial to consider the environmental impact of your choices. Sustainable and eco-friendly materials, such as stainless steel and fibreglass, align with environmental goals. These materials are not only durable but also recyclable, contributing to responsible resource management and reducing the overall carbon footprint. 

– Application Suitability: Different materials are better suited for specific applications. For example, stainless steel is ideal for ensuring water quality in residential, commercial, and industrial settings, while polyethylene may be more suitable for smaller residential applications due to its affordability.

What is the Best Material for Water Tanks?


While there are several options available, plastic stands out as the best material for water tanks. These tanks exhibit exceptional non-corrosive properties and longevity due to their construction from polyethylene. Notably, unlike metal and concrete alternatives, plastic tanks remain immune to rust and corrosion. Moreover, they boast the advantages of being lightweight and easy to handle, requiring no heavy machinery for installation or relocation.

Polyethylene (often referred to as ‘poly’) tanks are typically manufactured as a single piece without joints or seams. Consequently, no sealants are necessary to connect various parts of the tank. One particularly exciting feature of polyethylene tanks is their recyclability once they have fulfilled their intended purpose.

Poly tanks reign as a popular choice in the market for their lightweight, durable, and easily transportable nature. Additionally, they exhibit UV resistance, ensuring that exposure to sunlight does not lead to degradation or brittleness. With a wide array of sizes and shapes available, poly tanks consistently offer a cost-effective solution.

Rotationally moulded polyethylene storage tanks are crafted from high-density linear polyethylene (HDPE) or high-density cross-linked polyethylene (XLPE). This rotational moulding process enhances the tanks’ structural integrity and durability, making them highly resilient against impacts, punctures, or tears. Furthermore, they stand as a rust and corrosion-resistant option.

Polyethylene emerges as the preferred storage solution for chemicals, as it eliminates the concern of rust or corrosion typically associated with metal. Regulatory bodies often mandate the use of plastic tanks for specific chemical storage needs. These tanks are commonly employed to house fertilizers, pesticides, pharmaceutical materials, and acids.

Discover Excellence with Raven Tanks: Your Premium Choice for Water Storage Solutions!


Water storage tanks are integral components within water distribution networks, performing essential functions such as managing supply and demand, alleviating the burden on water treatment facilities, and promoting efficient resource utilization. This vital role directly contributes to global conservation initiatives, emphasizing the significance of these tanks in sustainable water management.

Raven Tanks provides high-quality, reliable, and secure water storage options in Australia, crafted with precision, durability, and advanced technology for a lifetime experience. We offer tried and tested services in Sydney, Melbourne, Brisbane, Canberra, Dalby, Darwin and Geelong.

We have a skilled and accommodating customer support staff ready to serve you! Contact us today for a free consultation and quote. Don’t wait until it’s too late. Today, protect your water tank and enjoy years of worry-free living.

Call Raven Tanks at 1800 907 834 or email at [email protected]

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