Brought to you by Great Northern Tanks — Australia’s experts in durable water tanks and rainwater harvesting system design.
In a country as dry and unpredictable as Australia, every drop of water counts. Whether you live in a regional community, manage a rural property, or simply want to reduce your mains water reliance, a well-designed rainwater harvesting system is one of the smartest investments you can make.
But collecting clean, safe rainwater requires more than just a tank under your gutter. From roof design to water filtration integration, every component plays a vital role in ensuring your water is pure, efficient, and reliable.
In this guide, the Great Northern Tanks team breaks down how to build a complete roof water collection system — from the moment the rain hits your roof to the moment it flows safely from your tap.
Australia’s rainfall patterns vary dramatically, and poor system design can lead to lost water, contamination, or inefficient storage. A well-planned rainwater harvesting system ensures:
A high-performing system combines smart engineering with quality materials — and that’s exactly where Great Northern Tanks excels.
Your roof is the first and most important part of any roof water collection system. Its surface area, pitch, and material all determine how much rainwater you can capture and how clean it will be.
💡 Pro Tip: If you’re building new infrastructure, talk to Great Northern Tanks early — we can help calculate your potential water yield and recommend compatible tank sizes.
Gutters and downpipes direct rainwater from your roof into your storage tank. Poorly installed or undersized systems can cause leaks, overflow, and contamination.
High-quality fittings are crucial — Great Northern Tanks supplies durable, corrosion-resistant inlet and overflow components designed for long-term performance in Australian conditions.
When it rains after a dry spell, the first runoff from your roof often contains dust, bird droppings, and organic debris. This “first flush” can contaminate your tank if it’s not diverted.
A first-flush diverter solves this by automatically capturing and discarding the initial dirty runoff before clean water enters your tank.
It’s a small, affordable addition — but one of the most important steps in achieving clean water storage for your home or farm.
Your rainwater tank is the heart of your collection system. The size, material, and location all influence how effectively your system performs.
All Great Northern Tanks are engineered to meet Australian Standards (AS/NZS 4020 and 4766) — ensuring your water storage is durable, hygienic, and safe for long-term use.
Even with good design, fine particles, bacteria, or organic matter can still enter your tank. That’s where water filtration integration becomes essential.
At Great Northern Tanks, we can integrate filtration systems directly with your tank setup — creating a seamless, low-maintenance solution for clean, safe water year-round.
Modern systems can include smart monitoring technology, allowing you to track water levels, rainfall, and consumption from your phone or computer.
Smart systems can:
Combining automation with durable tank construction gives rural and residential customers the best of both worlds — convenience and reliability.
Even the most advanced system needs occasional care to stay clean and efficient.
Great Northern Tanks offers ongoing support and expert advice to help customers maintain their systems and protect their investment for decades.
A properly designed rainwater harvesting system isn’t just a backup plan — it’s a sustainable, cost-effective way to secure water independence. From roof water collection to water filtration integration, every component matters in delivering safe, reliable water to your home, farm, or business.
When built with quality materials and backed by expert guidance, your system will serve you for generations — providing pure water, reduced bills, and greater resilience in a changing climate.
Design your complete rainwater harvesting system with help from the professionals who understand Australia’s climate and water challenges.
📍 Visit us: https://greatnortherntanks.com.au/contact-us/
📞 Call us: 1800 783 358
✉️ Email: sales@greatnortherntanks.com.au
🏢 Toowoomba Office: 66 Carrington Rd, Torrington QLD 4350 — Call: 07 4566 2900
🏢 Livingstone NT Office: 2658 Stuart Highway, Livingstone NT 0822
Great Northern Tanks — from roof to tap, engineered for clean, sustainable water storage.
