Clear water with low microbiological contamination thanks to UV-C water clarifiers
UV-C water clarifiers offer you the opportunity to clarify white and green water cloudiness in a technical way without the application of liquid products. Moreover it has the property to efficiently reduce the germ count (e.g. pathogens).
How does a UV-C water clarifier work?
UV-C radiation is the radiation range between 200 and 280 nm, which lies below the UV-A and UV-B radiation and is not visible to the human eye. UV-C radiation has a germicidal effect and therefore is used for the clarification of water. The water flows with medium speed along the lamp which emits UV-C radiation. Through the residence time in the UV-C radiation germs and floating algae get killed. The JBL ProCristal UV-C water clarifier has been designed so that the layer thickness and the bulb impact bring perfect results. To receive maximum impact the pump performance must precisely suit the performance of the UV-C clarifier.
Reducing the germ count
Along with the clarification of green water (floating algae) UV-C clarifiers are often used to reduce the germ load in aquarium water. Passing the UV-C bulb, all germs are killed off and caught by the downstream filter. Here you also need to be careful that the pump performance is adapted to the purpose and performance of the water clarifier (see table).
JBL ProCristal UV-C water clarifier contain an internal glass cylinder which needs to be cleaned twice a year. This is not complicated and can be easily be carried out by people who are good with their hands within a few minutes after unscrewing the unit. Care should be taken when using a device with plastic inserts not to scratch them.
Replacing the UV-C bulbs
After about 6000-8000 h (often after about one year) the UV-C effect of the bulb decreases considerably and with it its clarifying and germ-killing effect. Then you need to change the bulb. You can easily do this yourself. Just open the housing and unclip the bulb from its fixture. Put in the new bulb without touching its glass surface (use cloth or paper). Put both halves of the housing together again – that’s it! JBL offers you high-quality JBL Replacement lamp UV-C from 5 up to 55 W.
Increasing the performance
If you want to get a larger aquarium or if you just need a higher output of your UV-C water clarifier, you can connect up to 2 units max. in series. For that JBL provides you with a special connection piece: JBL ProCristal UV-C QuickConnect .
Installing the UV-C device in front of or behind the filter?
Ideally install a UV-C water clarifier IN FRONT of the filter. Then the downstream filter can catch the dead germs and algae and they can be completely removed from the water the next time you clean your filter.
But if your filter is new or has recently been cleaned the UV-C water clarifier would obstruct or delay the biological settlement of your filter. In this case it would be useful to connect the clarifier for three weeks BEHIND and afterwards IN FRONT of the filter.