Billi 440 Quadra Tap User Guide
- June 13, 2024
- Billi
Table of Contents
BETTER WATER QUALITY
A Guide to Specifying Water Filtration Systems
for Health and Wellbeing
Introduction
Access to clean, fresh water is fundamental to living a healthy life. Drinking
enough water each day is crucial for many reasons: it helps regulate body
temperature, keeps our immune systems strong, delivers nutrients to cells, and
keeps our organs functioning properly. In addition, staying well hydrated
improves sleep quality, cognition and mood.
Due to the changing climate, rising pollution levels and Australia’s rapidly
growing population, the demand for clean drinking water has never been higher.
The government has a duty to provide Australians with safe drinking water, but
despite their best efforts, water quality at the point of consumption may not
always be beneficial to our short or long-term health goals.
Tap water can contain many impurities, both natural and artificial.
Some are harmless, only affecting the way water looks, tastes or smells.
However, other contaminants can spread infection, or slowly damage the health
of end users over time.
Filtering tap water ensures you have a safe, clean water supply, with obvious
benefits to health and wellbeing. Filtering tap water can decrease exposure to
the numerous known carcinogens and chemicals in tap water. It also improves
the taste and smell of tap water, encouraging users to drink water more
often. Not only does drinking more water lead to overall greater health and
energy, but the fluoride found in tap water also promotes better dental
health.
For these reasons, many Australians are considering water filtration systems
to meet basic hydration needs. There is a wide variety of water filtration
solutions on the market, but relatively little awareness in relation to what
contaminants are removed by different filter types, and the life expectancies
of filtration systems.
In this whitepaper, we consider what contaminants are commonly found in tap
water, and take a close look at what types of filtration are available to
achieve the best fit for purpose.
“Tap water can contain many impurities, both natural and artificial.
Some are harmless, only affecting the way water looks, tastes or smells.
However, other contaminants can spread infection, or slowly damage the health
of end users over time.”
What is in our tap water?
Sediment
When water from the tap is discolored or has particles floating in it, this
could be a result of sediment from the water distribution system. A very fine
layer of minerals or other sediments can make its way into the water we drink
from deteriorating pipework, building fit-out and new construction works, and
runoff.
Chemicals added to water
Chemicals such as chlorine, aluminum sulphate, fluoride and ammonia are added
to tap water to ensure that it is safe and healthy to drink. This can result
in tap water that has a lingering taste and smell of disinfectant. Many people
opt for a water filtration system just to eliminate the taste of chlorine.
Lead
Lead can leach into water supplies after prolonged contact with old piping and
fittings. In 2016, research by Macquarie University found excessive levels of
copper and lead in domestic water samples across New South Wales.
The ingestion of lead poses a serious health risk, especially for children who
can develop behavioral and learning problems, slowed growth and anemia.
Nitrates
Nitrates are commonly found in public water supplies in rural areas or private
water systems, and are often attributed to the runoff from fertilisers. In
Western Australia, some regional towns reported high nitrate levels in their
water supply, with some experts positing a link between such contaminants and
the prevalence of kidney disease in the local population.
Microbiological risks
Harmful bacteria and viruses can make their way into tap water via many
different sources, including sewage spills and animal waste. Some pathogens,
including Legionella bacteria, can survive in water even after it has been
treated.
Other waterborne microbial threats include Escherichia coli (E. coli),
Salmonella, Giardia and Cryptosporidiosis.
Pollution
Pollutants that contaminate public water supplies can come from a wide range
of diffuse sources, including agricultural activities, industrial activities,
and road works. Sometimes natural disasters can have an adverse impact on the
quality of our tap water. For example, in 2020, local drinking water had to be
disconnected temporarily from Warragamba Dam in New South Wales due to
concerns regarding bushfire pollution.
Types of Water Filters
Point-of-use water filters
Point-of-use (POU) water filters are designed to reduce or remove waterborne
contaminants, including pathogens, right at the end of the water system at the
faucet. There are several types of POU systems available on the market, each
with different advantages and disadvantages.
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Water jugs. This is the simplest form of water filtration. While they are convenient and easy to use, water jugs need to be constantly refilled, and their filter cartridges have a short lifespan.
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Tap mounted. This type of water filtration system features a water filter mounted directly onto the faucet. While economical, tap-mounted filters tend to slow the flow of water and some cannot be installed on all types of taps.
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Countertop. A countertop water filtration system connected to the tap can filter large amounts of water without any major plumbing modifications.
However, such systems can clutter the kitchen workspace, and some are not compatible with all taps. -
Under bench. This type of water filtration system is designed to fit entirely under the sink or benchtop.
It can filter large amounts of water without cluttering up the countertop or attaching to an existing tap, and often uses advanced multi-stage water purification processes. -
Floor-standing units. These units are standalone filtered water dispensers or water coolers/ heaters connected to water mains. They are larger appliances that require their own floorspace, but this can be easily traded off against not needing joinery or a kitchen space.
Filter mediums
The water filtration systems described above utilise different types or
combinations of filter mediums. Which one is suitable for your specific
application depends on what contaminants need to be filtered out. Some common
filter mediums are outlined below.
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Sediment filters. These filters are designed to capture and remove sand, silt, dirt, and rust from water. Removal of these particles protects the water treatment system from clogging up too quickly.
Sediment filters come in a range of micron sizes, which determines what size particles can pass through the filter. -
Activated carbon. Through a process called ‘adsorption’, contaminants adhere to the many pores within the carbon source. This filter medium is good for the removal of chlorine, chloroform, agricultural chemicals, organic substances, sediment, and magnesium. The system’s efficiency at removing contaminants will largely depend on its micron size and the quality of the system.
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Ion exchange. This filter medium consists of a substance that exchanges one ion for another as water flows through it. It is used to remove heavy metals, fluoride and nitrates, but it does not remove sediment, microbes or chlorine.
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Reverse osmosis. A multi-stage filtration system incorporating various sediment and carbon filters as well as a semi-permeable membrane. It is highly effective at removing contaminants such as fluoride, arsenic, nitrates/nitrites, copper, radium, and salt.
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Ultraviolet (UV). UV water filters use a specific wavelength from the UV light spectrum to destroy or render inert bacteria, algae and parasites, and reduce cysts. To be at their most effective, UV filtration systems must be on the UVC spectrum (the most germicidal form of UV radiation) and should be certified NSF 55 Class A and P231.
Evaluating and Selecting Water Filtration Systems
Key considerations
When choosing a water filtration system, the main considerations relate to the
type of contaminants that need to be removed from the water, and how much
drinking water is needed everyday. Water filtration systems for the home will
have different capacity and flow requirements than commercial units, for
example.
Other practical considerations include budget, space, access to electricity
and water, customer support, and maintenance costs.
What does the filter remove?
The filter type you need will depend on what types of contaminants you are
trying to remove from the water.
Sediment filters and activated carbon (depending on the micron rating) will
likely be enough to deliver bettertasting drinking water for most
applications. Reverse osmosis and UV purification may be needed where spread
of infectious disease is a concern.
Most filters have a micron rating, which refers to the distance between pieces
of filter media. The lower the micron rating, the finer the filtration. As a
general guide:
- A 5 micron water filter will sieve out particles that are visible to the naked eye.
- A 1 micron water filter will remove particles that are not visible, but are less likely to reduce lead and heavy metals, or parasitic cysts.
- A 0.2 micron water filter will sieve out particles, but also removes chlorine and organic chemicals, parasitic cysts Giardia and Cryptosporidium, lead and heavy metals.
The quality of the unit plays a large part in its effectiveness. Cheaper units
provide mediocre filtration performance, and are expensive to run in the long
term.
Some units will have lower quality filtration due to being made up of granules
that are held together with a resin (therefore decreasing surface area).
Cheaper filters also often result in ‘tracking’, where the incoming water
supply takes the same pathway or ‘track’ thus negating any potential
cleansing effects.
Is it accredited and certified?
Manufacturers make a lot of varied claims about their water filtration
systems, making it difficult to be sure water filters will do what they say.
In this regard, it is important to check if the product has been accredited
and certified under the relevant product standards.
The Australian WaterMark Certification Scheme requires products, including
water filters, to meet relevant standards to ensure they are safe and fit-for-
purpose.
To achieve certification, the water filter must be tested by a recognised
testing lab, comply with AS 3497:2021 “Drinking water treatment systems —
Design and performance requirements”, be manufactured in accordance with an
approved Quality Assurance Program; and carry a warranty.
The National Sanitation Foundation (NSF) is probably the most widely
recognised independent international body that monitors products that affect
food or water safety. The NSF publishes several standards directly relating to
water treatment systems including:
- NSF 53: Drinking Water Treatment Units – Health Effects;
- NSF 58: Reverse Osmosis Drinking Water Treatment Units;
- NSF 58: Reverse Osmosis Drinking Water Treatment Units; and
- NSF 55: Ultraviolet Microbiological Water Treatment Systems.
Note that NSF 55 provides certification requirements for UV treatment systems
that inactivate or kill bacteria, viruses and cysts in contaminated water
(Class A systems) or to reduce the amount of non-disease causing bacteria in
disinfected drinking water (Class B).
NSF Protocol P231 is a strenuous test used to certify microbiological water
purifiers for health and sanitation.
While NSF standards are widely publicised, there are several equally well-
accredited peer bodies, such as IAPMO R&T (International Association of
Plumbing and Mechanical Officials Research and Testing), that provide
certification and testing in accordance with NSF standards.
How long will it last?
How long a filter will last before it needs to be replaced is dependent on
multiple factors, including: how many contaminants are in the water; the
hardness of the water; how often the filter is used; and the quality of the
water filter.
Manufacturers should provide clear instructions for how often you should
replace the filters in the system.
Some advanced filtration systems have indicators that will provide a warning
that a filter needs to be replaced.
Higher quality appliances can go as far as to include hygiene protection
features in-built to ensure the same filter is not used in multiple machines.
“The filter type you need will depend on what types of contaminants you are
trying to remove from the water.”
Billi Water Filters
Billi prides itself on offering world class water filtration products and
continues to partner with global leading experts in all areas of water
filtration. Partnering with BWT, Europe’s largest water treatment products
company, Billi’s range of premium filters utilise the unique Fibron X
technology. Fibron X technology uses activated carbon fibre with minimal
bonding agents in a graded density profile. Due to this structure, Fibron X
media has a superior contaminant reduction performance and capacity than
conventional water filters.
This advanced multi-stage fi ltration system filters out particles in water,
reduces chlorine and organic chemicals, and enables minerals to flow through
the appliance without allowing scale. Certain high performance models can
remove parasitic cysts Giardia and Cryptosporidium (994052 and 994060 only),
and reduce lead and heavy metals (994052 and 994060 only).
Billi filters have been independently tested and certified by IAPMO to
international standards and Australian Watermark. Billi filter performance
testing is conducted in accordance with international standards NSF, WRAS, and
Watermark.
Billi’s range of filters allow you to select the right filtration solution for
your needs. The company’s 0.2 micron filter provides the highest level of fi
ltration. The 5 micron filter provides a more standard option to improve your
drinking water by removing sediment, chlorine and limescale which in turns
improves taste and odour. The Billi range offers a solution that can cater to
any home or work environment.
Genuine replacement Billi filters are available on their website and from your
local approved supplier. Billi also offers extensive customer support and
service plans to suit customers’ requirements. To make maintenance even
easier, all Billi filters contain a digital protection device to ensure
single use, hygiene and an ability to monitor water volume throughput.
For more information on Billi’s range of water filters, please visit
billi.com.au/billi-filters
REFERENCES
-
Dean, Signe. “‘Widespread’ lead contamination of domestic tap water found in NSW.” SBS.
https://www.sbs.com.au/topics/science/humans/article/2016/08/11/widespread- lead-contamination-domestic-tap-water-found-nsw (accessed 15 December 2021). -
NSW Government. “Lead exposure in children.” NSW Health.
https://www.health.nsw.gov.au/environment/factsheets/Pages/lead-exposure- children.aspx (accessed 15 December 2021). -
Shine, Rhiannon. “High nitrate levels in some WA water supplies could cause kidney disease, doctor warns.” ABC News.
https://www.abc.net.au/news/2016-06-28/kidney-disease-in-wa-communities- linked-to-nitrates-in-water-su/7551852 (accessed 15 December 2021). -
Philips, Nicky. “Legionella ‘hiding’ in treated water supplies.” Sydney Morning Herald.
https://www.smh.com.au/environment/sustainability/legionella-hiding-in- treated-water-supplies-20110222-1b3jw.html (accessed 15 December 2021). -
Nguyen, Kevin. “Sydney drinking water reconnected to Warragamba Dam after contamination fears from fire and floods.” ABC News.
https://www.abc.net.au/news/2020-02-15/sydney-cut-off-from-warragamba-dam- due-to-bushfire-contaminaton/11968988 (accessed 15 December 2021).
All information provided correct as of January 2022
References
- High nitrate levels in some WA water supplies could cause kidney disease, doctor warns - ABC News
- Sydney drinking water reconnected to Warragamba Dam after contamination fears from fire and floods - ABC News
- Lead exposure in children - Fact sheets
- Legionella 'hiding' in treated water supplies
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