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| WHAT IS ULTRA VIOLET FILTERATION TEST ? |
| WHAT IS ULTRA VIOLET FILTERATION TEST ? |
UV systems use high frequency light to irradiate water through a glass element. Water passing the element is exposed to the light, which kills all living organisms.
UV systems are very common in Third world hotels etc where the possibility of serious disease occurring from local water consumption is high, especially from fecal matter in the water.
Although an excellent sterilizing system, it is impossible to know whether the system is always working without a laboratory analysis of the output water. For this reason the more sophisticated systems incorporate an hour counter so a new element can be replaced at a safe interval |
| WHAT IS UV? |
| Ultraviolet (UV) light is at the invisible, violet end of the light spectrum. Even though we can't see UV light, we are exposed to UV rays from all light sources, including the sun. |
| HOW DOES ULTRAVIOLET LIGHT PURIFY WATER? |
| UV-C rays penetrate the cells of harmful bacteria and viruses in our drinking water, destroying their ability to reproduce. Without this ability, these organisms die and no longer pose a health threat. It is a simple but very effective process, with the system generally destroying 99.99% of harmful microorganisms. |
| WHY NOT USE CHLORINE INSTEAD? |
| Chlorine changes the tastes and odor of water. Chlorination can also produce harmful by-products called Trihalomethanes (THMs) which are linked to incidence of cancer. |
| DOES A UV SYSTEM USE A LOT OF ENERGY? |
| No, the UV unit will use about the same amount of energy as a 60 watt light bulb. It is a cost effective, natural way to increase water quality where microbiological contamination is present and to provide peace of mind where microbiological contamination is a greater risk. |
| WHY DO UV PURIFIERS REQUIRE SEDIMENT PRE-FILTRATION? |
| UV systems require pre-filtration to maintain effectiveness as sediment and other contaminants in the water can create a "shadow" which prevents the UV rays from reaching and disinfecting the harmful microorganisms. |
| HOW OFTEN DOES THE UV LIGHT BULB (LAMP) NEED TO BE REPLACED? |
| It is essential that you change your UV lamp annually. The ability of the lamp to emit UV light decreases over time. Remember - UV light is invisible! Even though the lamp is still glowing after one year, there might not be enough UV light reaching your water to be effective. |
