Description
High-performance water clarifier for garden ponds
- Eliminates green water (floating algae) and whitish cloudiness (bacteria) reliably and quickly, using germ-killing UVC radiation. UV light is an entirely physical agent. There are no harmful side effects. Reduces the germ load and reduces the risk of infection.
- To extend the performance, devices can be joined together by connecting pieces (JBL ProCristal Connect).
- Highly durable thanks to the glass cylinder, which protects the internal reflector.
- Very high effectiveness – water flow has a maximum layer thickness of 10 mm.
- Automatic burner switch-off when opening the device ensures safety.
- Optional hose connector tails and threads for PVC tube fittings. Strong 2 m rubber cable with protective earth wire and safety plug. 4-year warranty on casing.
- Total length to the end of the hose nozzle: 55 cm.
- 50% more effective than the current range. Increased radiation because of the reflection foil outside the glass cylinder.
- Fittings are optimised for aquarium and pond hoses. Standardised fittings (tubing) fit the connection parts. Recent findings show that it is easier to partially sterilize bacteria than to combat clouding through algae. The reason for this is the difference in cell structure. Therefore the reach of a steriliser is wider for partial sterilisation than for combating floating algae.
- New electronic ballasts with higher degree of efficiency.
- Aeration: To prevent air bubbles inside the device the water clarifier needs to be lifted up for a few seconds with the water connection, where the water exits, on the upper side while the pump is running.
FAQ :
A partial sterilisation (against bacteria) is more effective than eliminating clouding caused by floating algae. Why? Because the cell structure of bacteria is quite simple. That’s why it is easier to destroy the cells of bacteria than those of algae.
When you have problems with bacterial infections on animals, the permanent use of the UV-C device is especially recommended. This is the only way to achieve an effective reduction of the germ load in the water. If no cases of illness are present, the operation can be limited to 12 h per day.
When using medications you should definitely switch off the UV-C burner.
From a distance we cannot assess how long your device needs to be in operation each day. For this we need to know the germ load and the regeneration of the germ density in the aquarium. However based on values of our own experience we would recommend running the device for an absolute minimum of 12 h a day. A continuous operation is, however, better for the durability of the burner.
A UV-C lamp can also kill off cyanobacteria floating freely in the water.
UV-C light degrades the chelators in the fertilisers which prevent the precipitation of trace elements, such as iron and some others. When using a UV-C clarifier we therefore recommend you switch to a daily dosing. At the beginning simply convert the standard dosage into a daily dose. It may be necessary later to increase the fertiliser dosage. Before each fertiliser application iron needs to be measurable at least in traces. Vitamins and other superior organic compounds also get degraded in the same way. Therefore a dosage of vitamins on the food is advised twice a week.
Storing water tests near a UV-C unit will not cause any problems.
By flow rate we mean the actual water flow through the UV-C water clarifier. If you connect the UV-C device behind the filter, all of the water which is run by the filter flows through the water clarifier, and the germ-inhibiting effect takes significantly longer (with regard to the total water amount of the aquarium). With powerful filters either the separate installation by means of a small circulation pump or the operation in bypass mode is recommended. This means running the water from the filter outlet to a y-piece (separation of the water), with the water clarifier installed in one of the water cycles, and then you can reconnect both hoses over a second y-piece, before the water flows back into the aquarium.
Deposits (dirt, limescale etc.) inside the casing prevent the optimum efficacy of the UVC water clarifier. Therefore the inside of the appliance needs to be cleaned about twice a year, more frequently if the performance significantly deteriorates.
No, unfortunately this is not possible. But you have the option to join a second ProCristal UV-C device to the 5W device with the help of the QuickConnect.
With the JBL QuickConnect you can join two ProCristal UV-C devices together. It doesn’t matter whether they have the same performance.
Yes, this would be useful. The bacteria need a little time to settle on the substrate. Until then they are floating freely in the water so that the UV-C radiation can kill them off. It is therefore recommendable to switch off the UV-C clarifier for a day.
A UVC water clarifier is generally connected at the outlet of the pump in order to ensure a proper flow.
In the majority of pond filters (with the exception of pressure filters), the filter holder is higher than the pond water level and the water flows out of the filter and down into the pond. The pond pump is in the pond. This is why the UVC water clarifier needs to be installed between the pump and the filter unit, to prevent the water from flowing back into it and blocking it.
A JBL ProCristal UV-C water clarifier consists of the UV-C burner and an electronic ballast. The ballast itself needs a low amount of electricity. The total output of the UV-C water clarifier is therefore slightly higher than the power, converted into UV-C light. Further information can be found on the type plate and the operating instructions.
Green water means floating algae, which grow when they have no competition from other plants and, even more, when the excrement of the fish creates excessive nutrient pollution in the water. The filter will not be able to do much about this. Ultimately, there are only two possibilities:
1. Carry out significantly more water changes in order to remove the nutrients caused by fish excrement.
2. A JBL AquaCristal UVC clarifier kills off the floating algae.
A temporary measure is to switch off the light for 2-3 days in order to stop photosynthesis in the algae.
