Frequently Asked Questions

Q. How does the HiFlow filter work?
Q. How long will the HiFlow filter last?
Q. How do I know that the filter will actually do what you say it will?
Q. Where is the HiFlow filter manufactured?
Q. How fine is the filtration?
Q. Does the filtration process remove fluoride?
Q. What if we move home can I take the filter with me?
Q. Can I use a HiFlow system for my rainwater?
Q. Can I use a filter cartridge other than the HiFlow cartridge?
Q. Is HiFlow a carbon filter?
Q. Can Hiflow be connected to hotwater?
Q. What does the HiFlow FIlter remove?

Q. How does the HiFlow filter work?
A.  The HiFlow filter carries out three filtration processes in the one pressure vessel (cartridge).
Firstly, inside the cartridge there is a barrier (or membrane) and this barrier stops all particles half a micron or larger from passing through. Particles include dirt, sediment, asbestos fibres and cysts such as Giardia and cryptosporidium.

Secondly, this membrane is impregnated with a special carbon compound that removes chlorine, bad tastes, odours, colour and lead from the incoming water supply – this special compound has a useful life of 12 months.

Finally, the cartridge contains polyphosphate a naturally occurring mineral that reduces limescale build up in water using appliances. That is, it stops scale build up in appliances like kettles and irons etc.
Again this process has a useful life of 12 months.

Please note – the hiflow filter system will not operate under gravity fed systems. The minimum water pressure for use of a HiFlow system is 70 kPa (10 psi).

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Q. How long will the HiFlow filter last?
A.  The HiFlow filter cartridge will last 12  months depending on the quality of the water in your area. The filter cartridge will produce a maximum of 11,355 litres of pure filtered water over the 12 month period.

The carbon and limescale removal compound within the filter cartridge have a useful life of 12 months, after which time the filter cartridge will not be carrying out the filtration process effectively.

Obviously usage and incoming water quality play an important role in the effective life of a filter cartridge. Also be aware that water pressure will also play a role as low water pressure will lessen a filter cartridges’ life as it becomes clogged with debri and contaminants over time.

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Q. How do I know that the filter will actually do what you say it will?
A.  Because the filters have been independently certified and are Watermark certified. Let us explain;

The HiFlow Filters are manufactured by Everpure Inc in their facilities at Hanover Park, Illinois. Everpure Inc. arranges for their filter cartridges to be independently certified by bodies such as NSF International (NSF) and United Laboratories (UL). The HiFlow Filter has been independently certified thereby supporting the manufacturer’s claims for contaminant removal.

NSF and UL certifications are recognized by Australian certifying bodies and are accepted as part of the Watermark certification process.

The WaterMark is a certification trademark owned by Standards Australia Limited. The WaterMark is used in relation to water supply, sewerage, plumbing and drainage goods. The plumbing industry in Australia supports the use of the WaterMark which, when used properly, is an excellent way of helping Australian consumers be confident about the quality of the Plumbing Products to which the WaterMark is applied.

The HiFlow Inline Mains Water Filter System gained Level 1 Watermark certification on the 27th October 2008 – Licence No. WMKA22045.

Level 1 approval not only certifies the product and its capabilities but the approval process also tests the company’s internal quality management procedures.

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Q. Where is the HiFlow filter manufactured?
A. The filters are manufactured by Everpure Inc in their facilities at Hanover Park, Illinois. The following is an overview provided by Eleni Yianas, Director of Residential Marketing Everpure Inc.

“Everpure’s in-home water filtration systems provide customers with premium-quality drinking water while offering a more cost-effective and economically “green” alternative to bottled water.  Producing plastic bottles requires many natural resources, including the oil to manufacture the plastic and expensive transportation costs.  And almost 90 percent of all plastic water bottles distributed in this country every year end up in landfills, where they can take up to 1,000 years to biodegrade.  By using an Everpure filtration system and refilling your own water bottle, you are already cutting back on these numbers.  In addition, Everpure’s filtration cartridges need only be replaced once a year.

At Everpure, our goal is to incorporate recycled materials into the manufacturing process at every possible point.  Everpure uses partially recycled metals in the fabrication of the filtration cartridges and partially recycled materials in all of our packaging and shipping materials.  In addition, we reuse any and all scrap material resulting from the manufacturing process.

At Everpure, we believe that delivering high-quality water through filtration of unwanted contaminants, tastes and odors provides a significant health benefit to our customers, and we remain committed to making as small an environmental footprint as possible.  

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Q.  How fine is the filtration?
A. The HiFlow cartridge filters down to one half of one micron (0.5) in size!       
As a guide human hair is 75 microns in size, Giardia cysts are between 1 and 6 microns in size.

Q. Does the filtration process remove fluoride?
A.  Fluoride is introduced into our water supplies in a dissolved form and is not removed by the HiFlow filtration process.

Q. What if we move home can I take the filter with me?
A.  Yes you can!  You simply turn off the water supply at the cold water isolation tap, and unscrew the unit and then reconnect the cold water hose from your main tap back onto the isolation tap. It is advisable to store the filter cartridge in a water tight container during transportation and before reconnection.

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Q.  Can I use a HiFlow system for my rainwater?
A.  Yes you can but please be aware of the following important issues;

  • You must have a pump with minimum pressure of 70kPa (10psi) delivering rainwater to your kitchen sink to ensure that the system performs effectively.
  • It is highly advisable that the water be treated with a pre filter prior to its entry into your home as this prolongs the life of your HiFlow filter cartridge, otherwise you may not achieve 12 months cartridge life.
  • Although the HiFlow filter system will remove cysts which can be prevalent in rainwater due to bird and animal droppings it does not remove bacteria or viruses should they be present in the rainwater supply.

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Q.  Can I use a filter cartridge other than the HiFlow cartridge?
A.  Only the HiFlow filter cartridge fits into the patented HiFlow head assembly and importantly, this ensures that you receive the quality half micron filtered water at the far superior flow rate.

This also protects your 5 year warranty.

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Q.  Is HiFlow a carbon filter?
A.  HiFlow is not just a carbon filter – it is much more - the HiFlow filter cartridge performs three filtration functions within the one canister. This can be explained as follows;

Stage 1
Within the metal canister is a membrane that traps all particles half a micron (0.5) or larger from passing through the filtration process. These particles include sediment, Cysts such as cryptosporidium and giardia, and asbestos fibres. Over time it is this membrane that will become clogged with particles and a reduction in flow may be evident.

Stage 2
The internal membrane described above is impregnated with a special activated carbon compound. This compound will filter out chlorine and any taste, odour or colour issues within the water supply through an absorption filtration process. The useful life of the carbon compound is 12 months.

Stage 3
The final filtration process undertaken by the HiFlow filter cartridge reduces limescale (scale) build up in water using appliances. The final chamber of the HiFlow cartridge contains an amount of polyphosphate to treat calcium and magnesium particle and stop them from forming scale on appliance such as kettles, coffee and ice making machines. The useful life of the polyphosphate is 12 months.

The end result is clean, clear filtered water delivered at mains pressure producing 11,355 litres annually – at a cost of around one (1) cent per litre.

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Q. Can Hiflow be connected to hotwater?
A.  The simple answer to this question is “No it cannot” - as the internals and performance of the HiFlow cartridge are only certified for use between 2 & 38 degrees C.

The only solution for Hotwater would be to install the HiFlow system within the cold water line that services the hot water heater. However, Hot water heaters use a substantial amount of water so the HiFlow cartridge will require changing more often than 12 months.

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Q. What does HiFlow remove?
A.  The HiFlow filter Removes

  • 99.99% Cysts – Cryptosporidium and Giardia
  • 98.00% Chlorine
  • 98.90% Lead
  • 99.80% Sediment
  • 99.80% Asbestos
  • 99.00% Turbidity

Health Claim Performance Classified by UL
The system has been tested and certified according to NSF/ANSI Standard no. 53 Health Effects and Standard No. 42 Aesthetic Effects (taste and odour reduction). NSF and UL are world leading independent testing and certification laboratories for water filters – which ensures that:

  • The manufacturers claims are true.
  • The system does not add anything harmful to the water
  • The system is structurally sound.
  • The literature and labelling are not misleading

Do not use with water that is microbiologically unsafe or of an unknown quality without adequate disinfection before or after the system.

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