JBL PROFLORA Direct 19/25
Archived
Item no. 6334100
Product features
- For an economical and direct plant fertilisation: CO2 diffuser for external filters
- Easy to install: connect to hose of external filter
- Exact dosing: integrated bubble counter, no water backflow thanks to backflow stop
- 20 % CO2 saving due to an especially effective diaphragm
- Package contents: 1 ready-for-connection high performance CO2 direct diffuser
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In unserem FAQ‑Bereich findet ihr Antworten auf die am häufigsten gestellten Fragen. Solltet ihr hier nicht fündig werden, zögert bitte nicht, uns direkt zu kontaktieren – wir helfen euch gerne weiter.
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What working pressure does the ProFlora direct need?
We recommend a working pressure of 1.0 – 1.5 bar.
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Is too much CO2 lost when the diffuser is at the water surface?
You don't have to worry. The gas exchange at the water surface with our breathing air, which also contains CO2, is very important for the aquarium environment. The diffuser should therefore move the water surface and thus promote gas exchange and prevent a build-up of surface scum. Most of the CO2 is already dissolved in the water column coming from the external filter. The membrane of the JBL PROFLORA Direct atomises the CO2 into fine bubbles which are carried along with the flow and dissolve in the hose. Unlike reactors, the bubbles here are very fine and light. The part that is not yet dissolved then swirls around in the aquarium as it drifts in and continues to dissolve. It is normal and unavoidable that some of the bubbles "pop out" at the surface. Nevertheless, this method is very effective.
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The bubble counter doesn’t fill with water. What can I do?
If there is no water in the bubble counter after the installation, just wait a few hours before switching on the CO2 supply. The water jet of the filter will then cause water to enter it. Alternatively while installing it, you can fill the chambers of the bubble counter with water.
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Why do you need to soak the membrane in water for 24 hours?
To receive a consistent bubble pattern with fine micro bubbles, the modern ceramic PE hybrid membrane needs to be soaked in water before putting it into operation. If this is not done, large bubbles will occur.
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The check valve doesn’t seem to let CO2 pass through it. What can I do?
Please wait until sufficient pressure has built up in the CO2 hose. Alternatively you can sharply increase the CO2 supply for a short time.
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Why does the CO2 diffuser create large bubbles?
In order to enable the modern ceramic PE hybrid membrane to build consistent micro bubbles and to ensure an effective _x000D_ CO2 spread in the water, it needs to be soaked in water for approx. 24 hours before being put into operation. Do not, therefore, switch on the CO2 supply after installation until the period of time mentioned has passed. Alternatively you can put the membrane into a bowl of water. Without this soaking the pores will not have enough water and will let large bubbles pass with an uneven distribution.
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Why does my CO2-INLINE-DIFFUSOR need more bubbles per minute than my old CO2 reactor/diffuser?
The size of the bubbles is essential to providing compatibility. That’s why you cannot compare the number of bubbles in the ProFlora direct with the old method of determining the bubbles (e.g. with the ProFlora Count (safe) or other bubble counters). Depending on the method used, the bubble size can differ by up to 300 %. That’s why it’s important to use the same bubble counter when comparing both systems in order to determine the conversion factor “bubble number in the old bubble counter” to “bubble number in the ProFlora direct”. Since there is no standard CO2 bubble size, it is otherwise difficult to determine the true conversion rate.
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I can hear the CO2-INLINE-DIFFUSOR whistling / chirping
In this CO2 diffuser the CO2 gets pressed through a fine diaphragm. Depending on the counter-pressure, this sometimes causes a slight chirping sound. If the sound intensifies during operation this indicates a soiling of the diaphragm or change in the operating pressure. Please clean the diaphragm and reduce the operating pressure, if required.
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Can the inline diffuser be used in a bio-CO2 system?
We wouldn’t recommend installing the JBL ProFlora Direct in a bio-CO2 system. The working pressure is not big enough to achieve an even addition of the CO2. Moreover, there is a danger that the pressure will not be able to escape through the integrated check valve, and this can lead to damage in the reaction vessel, if it isn’t able to withstand the pressure.
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Should I use several check valves on my CO2 installation?
True to the motto, better safe than sorry, some aquarists install several check valves in the same circuit. For example, if you use the JBL PROFLORA direct inline diffuser or the JBL PROFLORA CO2 Count Safe bubble counter, you already have an integrated check valve. If you also use a separate check valve (JBL PROFLORA SafeStop), there may be problems with the opening of the check valves. This effect can be observed if, after the night switch-off or interruption of the supply with the controller, the addition does not restart automatically. Please note that, depending on the working pressure and the number of bubbles, a few minutes may pass between the start of the supply and the visible entry of CO2 into the aquarium. _x000D_ Each spring in a check valve needs a certain pressure to be opened. Several springs can therefore interfere with each other and, depending on the distance between the two check valves, reduce the pressure at the spring to such an extent that it remains closed. Therefore, please always use only one check valve for your CO2 installation.
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How much water should there be in the bubble counter of the inline diffuser?
The bubble counter of the JBL PROFLORA® Direct diffuser is filled with water and screwed to the body © as shown in figure B of the instructions for use. During operation, water level fluctuations may occur in the bubble counter, depending on the amount of CO2 added. A large number of bubbles with high working pressure can displace the water from the chamber. Once the addition stops, water will enter the chamber again with a time delay. If the membrane is dirty, the chamber will remain empty. Cleaning the membrane is necessary, as described in the other FAQs.
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