Know what's in your water.
Get a FREE Water Test Kit with every RO filter.
Test your tap. See your local result.
Enjoy cleaner-tasting water at home.
Claim my free kitAUSTRALIA WATER ISSUE
3. Water concerns vary by region
INTERACTIVE MAP
Tap a state to explore local issues
Tap a state to explore
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Victoria (VIC) – Reliable, but Not Untouchable
Strong compliance, quick response to E. coli alerts, and robust urban infrastructure.
Occasional issues (e.g. storm-driven turbidity, regional lead scares), but no major crisis.
Public confidence is high — VIC ranks near the top.
EASY TO USE
How does the water test kit work?
Short press (when off): Power on
Short press (when on): Switch display data
Long press (when on): Power off
Short press: Measure
Please ensure the water level is above the Lowest Water Mark.
Long press: Enter calibration mode.
Calibration
- Enter Calibration Mode.
- to select YES or NO.
- Select YES (highlighted).
- Place the pen in distilled water. Ensure the water level is above the Lowest Water Mark.
- Press M to confirm and start calibration.
Watch the demo
EASY TO USE
Know what's in your water.
Test your own water in seconds
Dip it
Switch the pen on and dip the probe into a fresh glass.
Hold still
Wait about 3 seconds, until the number shows.
Read it
Match the number to the scale and you know your water.
Watch the demo
WATER QUALITY SCORE
What the number on your pen means?
The pen measures how much dissolved material — minerals, salts, metals and other residue — your water is still carrying, and turns it into a score out of 100. The higher the number, the less is left in the glass.
Tap Water
50 - 70
Jug Filtered Water
70 - 80
Bottled Water
96+
H2O RO Filtered Water
98+
More dissolved solids
Pure water
Safe to drink, but still carrying chlorine, hardness minerals, etc.
STILL IN THE GLASS
Chlorine • Hardness • Pipe residue
Softens the chlorine taste. Most dissolved solids are far too small for it and pass straight through.
STILL IN THE GLASS
Most dissolved solids
Purified at the plant — a high score, but one you pay for again every week and carry home in plastic.
STILL IN THE GLASS
Very little — at a recurring cost
Multi-stage filtration on your own bench. Bottled-level purity on demand, with nothing to restock.
STILL IN THE GLASS
Almost nothing but H2O
COD
Indicates pollution levels such as food waste, soap, and industrial discharge.
TOC
Shows the amount of organic matter like bacteria, decayed plants, and chemicals.
TDS
Measures dissolved substances including chlorides, lead, calcium, magnesium, and arsenic.
Other hidden impurities that can’t be detected by this kit include PFAS, microplastics, and total suspended solids
Scores vary with your local supply, the age of your plumbing and the condition of your filter cartridge. Ranges shown are typical for Australian mains water.
EASY TO USE
Know what's in your water.
100%would recommend this product
Slide 1 selected
2 reviews
- BBhadraVerified BuyerRated 5 out of 5 stars1 week ago5 Stars
I wasn't sure that a filter would make such a difference. When i got the h2o waterpen, i was shocked.
- SSamanthaVerified BuyerRated 5 out of 5 stars2 weeks ago5 Stars
My score changed so much. From 56 to 97.
- AAmyVerified BuyerRated 5 out of 5 stars2 weeks ago5 Stars
Unbelievable!
- LLachlanVerified BuyerRated 5 out of 5 stars3 weeks ago5 Stars
Was really intirgud to see what the score would do. turns out the machine filters so much. I would definitely recommend the h2o fitler system.
- SSusanVerified BuyerRated 5 out of 5 stars3 weeks ago5 Stars
My score went right up to 99