Is It Healthy To Drink from A Rain Water Tank?
There’s a common misconception that drinking water from a rainwater tank should be avoided, but with proper precautions, it can be a safe and sustainable source of drinking water.
Ensuring that your tank water is safe involves using food-grade materials for the parts of your rainwater harvesting system and maintaining it to a high standard.
Most rainwater tanks manufactured in Australia, including poly water tanks , are designed to safely store drinkable water. This is especially important in Australia, where water conservation is critical during long dry summers.
However, to ensure the water you drink from your tank is safe, consider the following factors:
- Make sure that your rainwater tank is made from food-grade material.
- Check the material of your roof and pipework.
- All water tanks must be constructed from materials such as concrete, polyethylene plastic, galvanized and stainless steel, Aquaplate® steel, or fiberglass.
How to Collect Drinkable Rainwater?
Drinkable rainwater can be collected from most roof types, but avoid roofs with lead flashings, lead-based paints, bitumen, or treated timbers, as they can contaminate your water storage . After installing a new roof or freshly painting an existing one, always discard the first few runoffs of rainwater when using it for drinking or cooking.
Most Common Rainwater Contaminants:
- Animal droppings
- Bacteria, parasites, and microorganisms
- Mosquitoes and frogs entering the water system
- Chemical spraying in the area that can affect the amount of water collected
Our water filters offer a cost-effective solution to protect your household from these contaminants if you rely on rainwater tanks for drinking.

Un-treated water tank can be harmful
Why Choose Great Water Filters Australia?
Our water filters not only remove harmful contaminants but also replenish essential minerals, resulting in perfectly balanced pH9 water. Whether for home or business , our filters are designed for fast and easy cartridge replacement and come with a 100% no-risk guarantee and a 10-year support package.
We offer a wide range of filters, including under sink alkaline , reverse osmosis , and whole house filtration systems , all with free installation across Australia. Our systems help reduce water bills while maintaining the highest quality standards for your water system .
For more information, compare our slimline tanks and systems in our quick comparison table: compare water filters . Ready to ensure the safety of your tank water ? Register your interest today for a free installation and enjoy cleaner, healthier water.
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40 Microns
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