Treating It Right: Processing Collected Rainwater Before Use

Now the rain has cleared, and your rainwater collection systems are to the brim with the precious resource – what do you do next? If you are not just using it to water your garden plots or flush your toilet, you might need these extra steps to ensure the water is safe for use.

A survey by the Bureau of Statistics in 2007 revealed that rainwater is a source of drinking water for 10% of Australian households using rainwater tanks. Clean rainwater is easy to spot – no discolouration, odd smells or particles. A well-maintained system with a clean tank is also a must.

However, if you want to make sure your rainwater is free from things you don’t want to be there, here’s what you could do:

The First Filter

There will be big particles and other macro-contaminants in the rainwater when it gets collected. A physical filter can easily take them before they deposit to your tank. This keeps a number of solids that is deposited in the tank at a minimum.


This is like nature’s own miracle. This biofilm is great to have for rainwater tanks. They can be helpful in clearing out the water of organic compounds and other organisms. The forming of the film disallows these compounds from floating around the water.

Ultraviolet Water Purification Systems (UV Systems)

UV purification is one of the best ways to deal with microorganisms. While many of the strains found in rainwater are not harmful to human health, the possibility remains. Installing a UV purification system like the kind offered here at Rainfill Tanks and Curved Roofing Supplies can keep your water supply 99.99% pathogen free. Lucky for you, it’s a chemical-free system so there’s no odd taste like what you would get from chlorine.

In hot and humid Australia, water is a valuable resource. Thanks to nature, rain delivers water quite literally to your doorstep. With a capable, well-maintained rainwater storage and treatment system, you get a supply of drinking water that is plentiful and affordable. With the right systems in place, it’s also safe for the entire family.

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