Standard home water filtration systems may offer a certain level of protection against bacteria, however, water known to be more problematic from a microbiological standpoint is best treated with the help of an UV water filter. UV water filters are capable of eradicating 99.9% of bacteria in water, thus removing a wide range of water-borne pathogens, bacteria that cause gastrointestinal problems, viruses, and other harmful microorganisms. Exposure to UV lights renders microorganisms inactive by destroying their DNA, and preventing them from infecting or multiplying. All this is achieved without changing or influencing the taste of water in any way.

uv water filter, whole house

Ultraviolet water filtration is an effective way of eradicating microorganisms without involving any chemicals in the process. To achieve the desired effects, you must know how to choose an UV water filter that is suited for your home’s water purification requirements.

Things to consider when choosing an UV water purifier:

  • Water quality and UV dosage

The quality of the water you have access to will determine the UV dosage required to deal with bacterial contaminants that may cause gastroenteritis, hepatitis, influenza, diarrhoea and other diseases or infections. In general, a 20 m/J per litre of UV dosage may be sufficient to treat municipal water supplies. In case you use well water for domestic purposes, around 30 m/J per litre is necessary. This dosage is usually enough to protect even against Giardia, E-coli or Cryptosporidium, however, in some cases, higher UV dosage may be desirable.

  • Flow rate considerations

After determining the UV dosage you need, you’ll also need to analyse the flow rate required in your household. 8-10 gallons per minute will cover the flow rate requirements of a typical household. Households with more than one bathroom will need to invest in a UV water filter with a higher flow rate.

  • UV pre-filtration system

Your UV water purifier system may come equipped with an UV pre-filter, which will remove sediments that can shield microorganisms from the effects of UV lights. If your system does not include an UV pre-filtration system, then you need to purchase one separately. It’s important to understand that these sediment filters ensure that your UV system achieves its intended effects. These systems are not optional, but rather a compulsory accessory for every UV purifier unit. By removing sediments and any other suspended solids or absorbing particulates, UV rays can reach and destroy bacteria in your tap or well water without any problems.

Apart from these aspects, you also need to focus on UV lamp life, pricing and brand reputation, however, UV dosage, flow rate and UV pre-filter considerations discussed above are some of the most important ones to take into account for successfully treating water with UV lights.

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Luminor Blackcomb 5.0 UV System


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