Clean, pure water is essential for optimal health and wellbeing. However, with increasing concerns about contaminants in our water supply, many Australians are turning to advanced filtration systems to ensure their drinking water is as safe and healthy as possible. One such popular option is the reverse osmosis (RO) water filter. But what does it actually do, and is it the right choice for your home? Let’s explore.
What Is Reverse Osmosis?
Reverse osmosis is a highly effective water filtration process designed to remove impurities and contaminants from your water. By using a semi-permeable membrane, the system forces water through microscopic pores, leaving behind particles, chemicals, and impurities that can't pass through.
How Reverse Osmosis Works
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Pre-Filtration: Water first passes through a sediment filter, removing larger particles like dirt, sand, and rust.
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Carbon Filtration: Next, a carbon filter removes chlorine and other chemicals, improving taste and odour.
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Reverse Osmosis Membrane: Under pressure, water is pushed through the RO membrane, which filters out microscopic contaminants, including heavy metals, bacteria, and viruses.
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Post-Filtration: An optional final filter removes any remaining impurities before the water reaches your tap.
This multi-step process ensures your water is as clean and pure as possible.
What Does a Reverse Osmosis Water Filter Remove?
RO filters are incredibly thorough and can remove:
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PFAS: The forever chemicals now detected in water supplies across Australia.
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Fluoride: Added to most Australian municipal supplies.
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Heavy Metals: Lead, mercury, and arsenic.
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Chlorine and Chloramines: Chemicals commonly used in municipal water supplies.
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Bacteria and Viruses: Harmful pathogens that can cause illnesses.
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Microplastics: Now found in both tap and bottled water.
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Sediment: Dirt, sand, and rust particles.
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Dissolved Salts and Minerals: Excess sodium and other impurities that affect water hardness.
Why PFAS Matters Most
For most Australian households, PFAS is the single biggest reason to look at reverse osmosis in the first place. These are the so-called forever chemicals used for decades in firefighting foams, non-stick cookware and stain-resistant fabrics, and they have since been detected in water supplies across the country. They are called forever chemicals because they do not break down naturally, either in the environment or in the body.
This is where the difference between filtration methods actually shows up. Standard jug filters and carbon block systems do not remove PFAS in any meaningful quantity, no matter what the packaging implies. They work by adsorption, which is effective on chlorine and taste compounds and very little else. Reverse osmosis is different, because the membrane strains at a molecular level fine enough to reject PFAS along with fluoride, lead and the rest.
If you want the specific Australian picture, we have covered PFAS and fluoride in Australian tap water in more detail.
By eliminating these contaminants, an RO system improves both the safety and the taste of your water.
Benefits of Reverse Osmosis Water Filters
1. Improved Health and Hydration
Drinking clean water free from harmful contaminants supports overall health, helping your body function at its best.
2. Better Taste and Odour
RO systems remove unpleasant flavours caused by chlorine, chemicals, and dissolved minerals, making your water taste crisp and refreshing.
3. Eco-Friendly Alternative
Using a reverse osmosis filter at home reduces reliance on bottled water, cutting down on plastic waste and supporting a more sustainable lifestyle.
4. Cost Savings
While the upfront cost may seem significant, investing in a quality RO system saves money over time compared to regularly purchasing bottled water.
Are There Any Drawbacks to Reverse Osmosis?
Removes Beneficial Minerals
While RO systems excel at removing harmful contaminants, they also strip water of beneficial minerals like calcium and magnesium. However, this can be remedied by adding a remineralisation filter to your system. The water in our BioStream™ involves mineralisation, enriching your water with naturally occurring minerals, enhancing both taste and health benefits.
Water Wastage
The filtration process can waste water, with some systems discarding up to 4 litres for every litre of purified water produced. Look for systems designed to minimise water waste.The BioStream™ maximises filtration without unnecessary waste.
Maintenance Requirements
To keep your RO filter functioning effectively, regular maintenance and filter replacements are essential. Hyper Wellbeing stocks all replacement cartridges and filters.
Is Reverse Osmosis Right for You?
A reverse osmosis water filter is ideal if you:
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Have concerns about contaminants in your water supply.
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Want to detoxify your body and prevent harmful chemicals from entering your body.
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Value the taste and quality of pure, clean water.
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Want an eco-friendly alternative to bottled water.
For a more portable option, consider the Biostream Benchtop Water Filter. It offers high-quality filtration without the need for plumbing installation, making it a great choice for smaller households or renters. If you are weighing up benchtop systems specifically, our guide to the best benchtop reverse osmosis water filter in Australia covers the membrane grade, mineral stage and other specifications worth checking before you buy.
Conclusion
Reverse osmosis water filters are an excellent investment for anyone seeking cleaner, safer, and better-tasting water. By removing a wide range of contaminants, including PFAS, fluoride and heavy metals, they offer peace of mind and support your wellbeing. Ready to take the next step?
Explore the Biostream Benchtop Water Filter today and experience the difference.
