Independent guides written without supplier influence — from water quality explainers to installation advice and product deep-dives.
We mapped Water Corporation's hardness data across 28 zones and calculated the real appliance damage cost for households in Perth's hardest areas — Yanchep, Butler, Two Rocks and Neerabup. The numbers are worse than most people realise.
Detected near defence bases and industrial sites across Australia, PFAS "forever chemicals" don't break down. Where they've been found, health risks, and which filters remove them.
Found in tap water, bottled water, and human tissue. The health science is developing — but the filter science is already clear. A practical, evidence-based guide.
Every major supplier scored on certifications, lock-in risk and 5-year cost. AquaCo leads at 9.1 — but the right choice depends on your state and water conditions.
What each filter stage actually does, what it removes, what it doesn't, and how they combine in a whole-home system. No jargon.
What each certification actually tests for, how to verify a supplier's claim, and the red flags that signal a supplier is bluffing about compliance.
Water Corporation publishes an annual quality report but it's dense with numbers. Here's how to find your zone, what each measurement means, and what to act on.
Step-by-step guide — shut-off, housing removal, cartridge swap and sanitising. Takes 15 minutes and saves you a service call every year.
We ran the numbers — purchase price, salt cost, water waste, service calls and energy use — over a decade for a typical 4-person Perth household.
Most homeowners compare filter quotes on price alone. Here's what else to ask for — and a template you can send to each supplier to get apples-to-apples responses.
Orange staining, chlorine taste, limescale, rotten egg smell — each symptom points to a different cause and a different filtration solution.
The electrolysis sludge, the TDS meter, the colour test — three common demos explained. Plus your ACL rights if you've already signed.
Plumbers are experts at installation — but filter selection requires different knowledge. What to trust your plumber on, and what to verify yourself.
Six steps, red flags to watch for, and the documentation you should receive before the installer leaves.
Manufacturer → distributor → plumber → you vs buying direct. The same technology at 2–4× the price depending on the route. Plus the cartridge lock-in trap.
Soft, chloramine-treated and from protected mountain catchments. Here's what's in Sydney's water and what filter — if any — makes sense.
Melbourne has the softest, best-tasting tap water of any Australian capital. Limescale is not a concern. Here's what's actually in it.
Safe — but the most challenging water profile of any Australian capital. Murray River salinity, high chlorine, variable hardness. Here's what helps.
Moderate hardness, chloramine disinfection, and outer suburbs harder than inner city. Here's what's in Brisbane's water and what to filter.
Three different providers, significantly softer than Perth, and surface-water towns like Margaret River and Manjimup have some of the best regional water in WA.
One in four Perth homes uses a bore for irrigation. But bore water is untreated groundwater — iron, bacteria and salinity each need different treatment.
"Tested to NSF" is not the same as certified. WaterMark is not a filtration standard. Six claim categories that mislead buyers and the questions that expose them.
Safe — but hard, chlorinated, and mineral-heavy depending on your suburb. Here's what's actually in Perth's water and what a filter does and doesn't fix.
Both Perth-based, both well-known. FilterOut scores them 9.1 and 6.8. The gap comes down to proprietary cartridge lock-in, pricing transparency and a $3,700+ 10-year difference.
Standard carbon filters do not remove fluoride. Only reverse osmosis reliably does — at 90–96%. Here's what every filter technology actually does (and doesn't do) to fluoride.
The filtration stage of a quality alkaline system is real and valuable. Most of the pH health claims around body chemistry and disease prevention are not. Here's the honest guide.
19% of Australians use rainwater tanks. But tank water is not automatically safe — bacteria, lead, atmospheric PFAS and acidic pH are real risks. Here's the multi-barrier treatment approach.
Most Australian city households don't need a whole-home system. Perth and Adelaide often do. Here's the honest breakdown by city, hardness, and what you're actually trying to solve.
RO removes PFAS, fluoride, lead, nitrates, dissolved salts and bacteria in one system. The most comprehensive residential filter — here's how it works and when you actually need it.
Softeners fix hardness and scale. Filters fix taste, chlorine and contaminants. They solve different problems. Here's the simple guide to which one you actually need.
An unmaintained filter is worse than no filter. Here's the complete monthly, 6-monthly and annual checklist for every residential water filter system type in Australia.
Chlorine genuinely strips skin oils and hard water damages hair. But claims that filters cure eczema or transform skin are overstated. Here’s what the clinical research actually shows.
PFOA was classified a Group 1 carcinogen by IARC in 2023. Australia updated its drinking water limits in June 2025. Here's what the science means for your tap water.
Dam inflows have fallen 80% since the 1970s. Desalination now supplies ~45% of Perth's water. Here's how the changing source mix affects hardness and what to filter.
Perth's groundwater replenishment adds purified recycled water to the drinking supply. 100BL recharged since 2017. Here's what the treatment removes.
Lead in tap water comes from household plumbing — old solder, brass fittings. Pre-1980s homes at highest risk. Detectable in 56% of NSW first-draw samples.
Australians buy 504L of bottled water per person per year. It costs 2,000x more than tap, contains more microplastics, and is less regulated. Here's the full comparison.
Nitrates in bore water near farming land can reach 200–300 mg/L. Boiling concentrates them, not removes them. Primarily a risk for infants under 3 months.
Both parasites resist chlorine. A "1 micron" claim is not enough — it must be absolute rated or NSF 53 cyst-certified. Here's exactly what the certification means.
UV kills bacteria, viruses and Cryptosporidium without chemicals. But it requires a sediment pre-filter and annual lamp replacement. A dead lamp looks identical to a working one.
Metro scheme water arsenic is well managed. The risk is bore water in WA Goldfields, SA and near historical gold mines. Here's who should test and what removes it.