A Checklist for Buying Large Water Tanks in Sydney: 6 Key Considerations

Are you considering investing in large water tanks in Sydney? Whether you’re planning to harvest rainwater for your garden, ensure a stable water supply for your property, or contribute to water conservation efforts, purchasing the right water tanks in Sydney is essential. Water storage is a wise decision because Sydney’s climate can be quite unpredictable, with periods of drought and then heavy rains. To help you make an informed decision, here’s a comprehensive checklist of six key considerations when buying large water tanks.

1. Tank Material

When it comes to large water tanks, the material matters. Sydney’s weather can be harsh, with high temperatures and occasional hailstorms. Common materials for water tanks include polythene, steel, concrete, and nd fiberglasPolyethylene tanks are popular due to their durability, UV resistance, and corrosion resistance. Steel tanks are robust but may require additional coatings to prevent rust. Concrete tanks are durable but can be heavy and may require more maintenance. Fibreglass tanks are lightweight and corrosion-resistant, making them suitable for many Sydney environments. Consider the material that best suits your location and budget.

2. Tank Size and Capacity

Determining the right tank size and capacity is crucial. Sydney’s water usage varies depending on the season and your specific needs. Consider factors such as your average water consumption, roof size for rainwater collection, and available space for tank installation. Large water tanks can range from 1,000 to 10,000 litres or more, so choose a size that aligns with your requirements.

3. Installation Site

Selecting the appropriate location for your water tank is essential. Ensure the site is level, stable, and free from obstructions. Additionally, consider local regulations and council requirements for tank placement, as these can vary by suburb in Sydney.

4. Tank Accessories

To maximise the efficiency and functionality of your large water tank, think about the necessary accessories. This may include gutter guards to prevent debris from entering the tank, first flush diverters to divert the initial runoff, and tank pumps or filters for water distribution. Factor in these accessories when budgeting for your water tank purchase.

5. Quality and Warranty

Investing in a large water tank is a long-term commitment, so quality matters. Research reputable brands and manufacturers to ensure the tank you choose is built to last. Read customer reviews and enquire about warranties. A good warranty can provide peace of mind that your investment is protected in the event of defects or damage.

6. Budget

Last but not least, establish a realistic budget for your large water tank purchase. Consider not only the initial cost but also ongoing maintenance expenses. Remember that higher-quality tanks often come with a higher upfront price tag but may save you money in the long run due to their durability and efficiency.


Buying large water tanks in Sydney is a wise decision to combat water scarcity and ensure a reliable water supply for various purposes. By considering the tank material, size, installation site, accessories, quality, and budget, you can make an informed choice that suits your specific needs and environmental conditions.

Before making your purchase, it’s advisable to consult with a local expert or supplier who can provide tailored advice based on your requirements and the unique characteristics of your location in Sydney. With the right large water tank, you can harness the benefits of rainwater harvesting and contribute to a more sustainable future for Sydney’s water supply.