Rainwater Tank Water Filter
Top choice water filtration systems in Melbourne
Protect Your Home with a Rainwater Filter Built for Australian Conditions
Harvesting rainwater is a great way to reduce your environmental impact and save money, but if you plan to use that water for drinking, cooking, or household use, it needs to be properly filtered.
At PureFlow Filtration, we offer purpose-built rainwater tank filter systems designed for Australian homes.
Benefits of Rainwater Filtration
Filtering your rainwater before it enters the home is a simple step that makes every tap safer.
Health
Rainwater isn’t treated like mains water, so without proper filtration, it may contain pathogens, sediment, and contaminants from bird droppings, leaves, or rust. A multi-stage rainwater filter helps make tank water safer to drink, cook with, and bathe in.
Home Protection
Unfiltered tank water can cause sediment buildup, pipe corrosion, and damage to washing machines, dishwashers, and kettles. A filtration system keeps your home’s infrastructure clean and running efficiently.
Sustainability
Filtered rainwater reduces your environmental footprint and gives you greater water security, especially in rural or off-grid properties. Use it confidently for your family, garden, or even emergency supply.
Why You Need to Filter Rainwater
Rainwater may be free, but it’s not always clean. As it runs off your roof and into your tank, it can collect a range of unwanted contaminants:
- Dirt, rust, leaves, and sediment
- Bird droppings and organic debris
- Bacteria, viruses, and protozoa like Giardia
Rainwater starts pure, but it often requires filtration to make it safe for household use - especially if you’re using it for drinking water.
A proper rainwater filter system helps reduce these risks and ensures your water is clear, safe, and great-tasting.
Why PureFlow is the #1 Choice for Water Filtration in Melbourne
Real Reviews. Real Results. Really Clean Water.
Five Star Google Reviews
Vico Lintang
We love our PureFlow filter. The bath and shower no longer smell of chlorine when we run them, and the water tastes delicious. We previously used a ceramic benchtop filter, but having PureFlow installed for...
Read MoreChadstone
Jessica Ranci
We love our PureFlow filter. The bath and shower no longer smell of chlorine when we run them, and the water tastes delicious. We previously used a ceramic benchtop filter, but having PureFlow installed for...
Read MoreMontmorency
Ruben Marks
I called a few different companies to find exactly what I was looking for, and PureFlow was the most professional by far. They sent out Monte, who was excellent to talk to about all my...
Read MoreRingwood
Adam P
10/10: I recently had a water filtration system supplied and installed by PureFlow Filtration, and I couldn’t be more impressed. From start to finish, the service was absolutely seamless. The price was the best I...
Read MoreMornington
Gaurav J
Monte is very patient. He came to our house and tested the water from the kitchen tap. He was able to answer all the questions we asked him. The setup was very easy, and the...
Read MoreTarneit
Asil Hakimzadav
They installed my system last week, and since then, the water tastes so good, and the chlorine smell is gone. Installing the filter has been one of the best decisions I’ve made, especially with a...
Read MoreClyde North
Ravi Sandhu
We are really satisfied with our whole house PureFlow filter and the reverse osmosis filter system under the sink. We had this product installed a couple of days ago, and we’ve already started noticing the...
Read MoreWeir Views
Akash Singh
We’ve noticed a real improvement in our skin and hair since installing the system, and the water tastes much cleaner. The stainless steel unit is solid and performs far better than smaller plastic alternatives. Monte’s...
Read MoreCranbourne
Harchand
The water quality has made a huge difference to my hair, our laundry, and drinking water. The PureFlow team answered all our questions and made the setup process easy. Great product and excellent customer service.
Tarneit
Patricia De Sousa
The water tastes so much better that even my dog won’t drink from anywhere else. There’s no more buildup on the shower glass either—it stays crystal clear.
Burnside Heights
Manpreet Kaur
I absolutely love my PureFlow water system—it’s one of the best decisions I’ve made for my home. I started researching water purifiers after hearing about the water contamination in Melbourne, and after speaking with Monte...
Read MorePakenham
How Our Rainwater Tank Filter System Works (3 Simple Steps)
Our 3-stage rainwater tank filtration system uses a combination of physical filtration and UV disinfection to treat tank water effectively:
Stage 1
20-Micron Pleated Sediment Filter
Removes larger particles such as rust flakes, suspended solids, leaves, and sand. The pleated design increases surface area for better performance and lifespan.
Stage 2
5-Micron Polyspun Filter
Captures finer debris missed in stage one - including silt, fine dirt, and smaller rust particles - ensuring high-clarity water before UV treatment.
Stage 3
Advanced UV Disinfection
Neutralises bacteria, viruses, and pathogens like E. coli using ultraviolet light. This non-chemical disinfection step makes your tank water safe for drinking and cooking.
Our Italian-made filter system handles up to 70 litres per minute, making it suitable for most Australian homes. It can be installed before the pump or post-tank depending on your setup.
Is It Safe to Drink Rainwater with a Filter?
Yes, with the right system in place. When fitted with pre-tank filters and a UV disinfection stage, filtered rainwater meets the safety needs for everyday household use, including drinking.
Our systems are ideal for:
- Off-grid and rural homes
- Primary or supplementary water supply
- Families wanting to avoid chemical disinfectants
What Makes Our Rainwater Tank Filters Different?
- 3-stage protection: sediment + fine filter + UV
- Designed specifically for Australian rainwater conditions
- Robust 70LPM flow rate for whole-home use
- No chlorine or chemicals required
- Italian-made system, built to last
You get clean, safe water without compromising on pressure, taste, or performance.
Our Water Filter Systems Range
Our advanced four-stage whole house filtration system purifies water down to 0.5 microns using large 10″ or 20″ cartridges, optimising efficiency and longevity while effectively eliminating contaminants. This comprehensive system ensures clean, filtered water is delivered to every tap and shower throughout your home—enhancing your family’s health and well-being, protecting your plumbing and appliances, and improving your overall quality of life.
Our advanced five-stage reverse osmosis system reduces up to 99% of contaminants, including PFAS and fluoride, while enriching the water with essential minerals. This results in clean, high-alkaline water with a pH of 9.5, offering added peace of mind and supporting overall health. Featuring a USA-made RO membrane and a 12-litre stainless steel storage tank, the system ensures durability, safety, and the highest quality drinking water for your family.
Our premium UV Rainwater Filtration System eliminates bacteria and viruses from your tank water while capturing both fine and coarse sediment. Made in Italy, this all-in-one unit includes dual-stage filtration and a high-output UV lamp, ensuring reliable disinfection without the need for chemicals. An intelligent countdown timer with a built-in alarm system monitors UV lamp life and alerts you when replacement is due, providing continuous, safe water to every tap—ideal for homes relying on rainwater.
Choosing the Right Rainwater Filter System
Not all filters are created equal. A basic mesh or cartridge filter may remove visible dirt but won’t protect against harmful microbes. That’s why we combine physical filtration with UV purification for complete protection.
If you're unsure whether your current setup is safe, our team can visit your property and provide a tailored recommendation based on your tank, pump, and plumbing layout.
Get Your Free Quote
Ready to make the most of your rainwater? Let’s ensure it’s clean and safe. Book a free in-home consultation and we’ll:
- Test your tank water
- Inspect your plumbing setup
- Recommend the best rainwater tank filter system for your needs
Why Choose PureFlow Filtration
This is why our Rainwater Tank Filters are Australia's Top choice:
- 100% Australian owned and Melbourne based
- Free water testing and personalised advice
- Certified filters that meet Australian standards
- Premium stainless steel systems built to last
- Fast, professional installation by licensed plumbers
- Ongoing support from a friendly, local team
- Flexible payment plans and 0% interest options
- Full warranty on system and installation
At PureFlow, we believe that Better Water is Better Living
We’re hands-on with everything we do. We only use filters we’ve tested ourselves, and we’re picky - if it’s not good enough for our own homes, we won’t offer it to you. Our systems are built for tough Aussie conditions, and every filter is checked and certified before it leaves our hands. We’re always looking for ways to improve, whether that’s smarter designs, better materials, or new ways to make things easier for busy families.
Curious about Melbourne’s water quality?
Rainwater Tank Filter FAQs
Do I need a filter for my rainwater tank?
A filter is often recommended to remove sediment, bacteria, and other contaminants to ensure safe water, especially for drinking and household use.
What does a rainwater tank filter remove from the water?
Filters can remove dirt, debris, sediment, bacteria, viruses, chemicals, odors, and sometimes heavy metals, depending on the filter type. PureFlow system includes UV lights for bacteria and virus removal.
Which type of filter should I use for my rainwater tank?
Selection depends on your water use (drinking, laundry, gardening), tank location, and contaminants present. Common filter types include sediment, carbon, ceramic, and UV filters.
How do I choose the right size or model for my filter system?
Consider flow rate needs, pressure compatibility, filter capacity, and household water use. Larger households may need multi-stage systems with bigger cartridges.
How often should I change or clean the filters?
Maintenance frequency varies by type and usage but typically ranges from every 6 to 12 months for most filters. Some need cleaning when flow decreases.
