Enjoy the Benefits of Water Filtration and UV Light

Discover the cutting-edge technology that powers UV Water Systems' advanced filtration products. Our systems utilise state-of-the-art, NSF Certified UV technology to effectively eliminate harmful bacteria and viruses from your water, ensuring clean and safe drinking water for your home or business.

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Effective UV Treatment for Safe, Clean Water

The right system for you may have either 1, 2, 3 or 4 filters. The purpose of the filtration is two fold - to improve the quality of your water and to improve the clarity of the water so that the UV light can effectively sterilise the 'living nasties'. Cartridges trap contaminants either on the 'surface' of the filter material or within the 'depth' of the filter material. Here’s how it works.

The Water Filtration Process

The purpose of the filtration is two fold; to improve the quality of your water and to improve the clarity of the water so that the UV light can effectively sterilise the 'living nasties'. By the time the water has gone through these 3 filters it is clean and clear meaning that the bacteria still present can more easily get the correct exposure from the UV light. Here's how it works.

  • The First Filter

    On the left as you look at a 3 filter system.

    Filter sets are tested to last 12 months. If your filters are not lasting 9 to 12 months then that is because the water quality entering your system is not good enough. You will need to address things like, overhanging trees, dirty roof, gutters and water storage tanks. Heavy rain down pours will wash sediment around in your tank and get pulled through the filters which will remove the sediment but block more quickly. I am often asked for less dense filters to increase flow but all this does is open up the system to allow more contaminants through for you to consume. These certified filters are a tested drinking water set and setup to give you a high level of filtered bacteria free drinking water.

    This first 5 Micron Pleated paper filter is to remove sands, sediment and broken down leaves. This filter can be cleaned with an outside spray to help with flow every few months but once the filter pores are blocked the water will not pass through the filter and it will need to be changed typically every 12 months.

  • The Second Filter

    This is a 5 Micron coconut carbon filter for taste, smell and discolouration. The filter will also help to remove sprays that may get on your roof or collection area. This filter is placed in the middle because it needs protection. If it does not have a filter before it like the 5 Micron pleated paper filter it will clog with sediment and will not work for more than a few weeks.

  • The Third Filter

    This is a 1 Micron Melt Blown filter. A little like a dense toilet roll. This is a polishing filter and also removes any fine dust released by the carbon. Even material certified and tested carbon filters can leach a small amount of carbon dust which this filter will remove along with and other 1 micron floating matter.
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NSF Certification Badge & UV Water System

Ensuring Safe and Clean Water with NSF Certified UV Water Systems

At UV Water Systems, we prioritise your health and safety by adhering to the rigorous standards set by NSF and New Zealand Drinking Water Standards.

Our UV water filtration systems are built using the finest components and materials, providing you with peace of mind and confidence in the quality of your drinking water.

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Water Sterilisation Process

Effective UV Treatment for Safe, Clean Water

  1. The filtered water is now sufficiently clear (the correct turbidity)as it enters the UV chamber.
  2. The chamber is fitted with a quartz sleeve (sealed at both ends).
  3. A UV lamp sits inside the sleeve. This is a dry area (provided the sleeve is not cracked).
  4. The wattage of the lamp needs to be sufficient to sterilise at the maximum water flow rate that your building will experience.
  5. The water spirals around the chamber whilst being exposed to the UV light (the sleeve must be clean) which sterilises the reproductive organs of the 'living nasties'.
  6. These 'bugs' will not be able to multiply, thereby rendering them harmless and the water safe to drink.


In order to provide safe drinking water the system needs to have the correct filters in the correct order followed by the correct UV chamber. The UV sterilisation formula is based on the turbidity of the water (clarity) dictated to by the cartridges, The length and width of the UV chamber the wattage of the lamp and the flow rate through the changer dictating the exposure time. There are literally thousands of UV chambers supplied by hundreds of dealers that are two small and do not sterilise your water. None of these dealers can offer you any independent certification evidence that these systems even work.

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Water Filtration Facts

Everything You Need to Know About UV & Water Quality

When and where is UV used? Why is it superior? We’ve answered all the big questions when it comes to UV and water quality over on our blog.

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Technical Support and Maintenance Services for UV Water Systems

  • Regular Maintenance to Extend System Lifespan

    Regular maintenance is essential to keep your UV water filtration system running smoothly and to extend its lifespan. Our technicians will perform thorough inspections and cleaning to ensure optimal performance.

  • Technical Support for Any Issues

    We offer technical support to address any issues or concerns you may have with your UV water filtration system. Our knowledgeable team is always ready to assist you.

  • Replacement Parts for Quick Repairs

    In the event that your UV water filtration system requires repairs, we have a wide range of replacement parts available for quick and efficient repairs. Shop our General Parts here.