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.
The filter type you need will depend on what types of contaminants you are trying to remove from the water.
What does the filter remove?
Most filters have micron rating, which refers to the distance between pieces of filter media. The lower the micron rating, the finer the filtration.
- A 5 micron water filter removes particles visible to the naked eye.
- A 1 micron water filter removes particles that are not visible, but less likely to reduce lead and heavy metals, or parasitic cysts.
- A 0.2 micron water filter removes particles, chlorine and organic chemicals, parasitic cysts Giardia and Cryptosporidium, lead and heavy metals.
Evaluating and Selecting Water Filtration Systems
What type of filter do I need?
- Determine what types of contaminants you are trying to remove through filtration and choose the appropriate filter medium.
- Practical considerations include budget, space, access to electricity and water, customer support, and maintenance costs.
Is it accredited and certified?
- Independently tested and certified by IAPMO to international standards and Australian Watermark. Performance testing conducted in accordance with international standards NSF, WRAS, and Watermark.
How long will it last?
- How long a filter will last before it needs to be replaced is dependent on the quality of the filter, how often it is used and other environmental factors.
- Some high quality filtration systems have indicators that will provide a warning that a filter needs to be replaced.
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