JBL PROSILENT a400
Archived
Item no. 6054400
Product features
- Health and well-being for fish and plants: air pump for fresh and saltwater aquariums from 200 up to 600 l
- Easy to install: connect pump with air hose and air stone. Mount pump outside aquarium, place air stone inside the aquarium
- Reduced noise level: noise suppression air chamber, vibration dampening silicone feet, reinforced housing wall, adjustable air outlet, 90° rotatable air connection with hose screw connection
- TÜV tested, powerful: 400 l/h air output with > 160 mbar air pressure with only 5.5 W consumption, check valve prevents backflow of water into the pump
- Package contents: air pump for fresh and saltwater aquariums from 200 up to 600 l, Pro Silent a400, incl. 2 m air hose, check valve, air stone
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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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Does the use of effervescent tablets and strong currents cause the important plant nutrient CO2 to be expelled from the water?
When aerated and/or when there is strong water flow, a gas equilibrium between the ambient air and the water is established. This also results in a corresponding, but very low CO2 content in the water, which cannot be changed by aeration. HOWEVER, this low CO2 content is far too low for most aquarium plants to thrive. Therefore, aquarium owners must rely on additional CO2 supply through CO2 fertilization systems. The higher CO2 content achieved in this way is reduced by ventilation and strong currents or, as it is called in aquarium terminology, expelled. For this reason, well-planted aquariums should only be lightly ventilated at night if necessary.
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How do I remove the hose from the device?
At first, air hoses and special CO2 hoses are flexible and can be easily attached to the connection pieces. After a few months, the hoses harden more and more and can only be removed from the connection piece with considerable force. If you pull hard on the hose, this will damage the connection. In the worst case, it may break off. Therefore, cut the hoses to be removed at the side and remove them carefully. Always install the hoses with a little extra length.
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Why is my air pump making loud humming noises?
Even under optimal conditions, the operating noise will be audible in quiet rooms. Every air pump generates vibration and humming noises that are more or less clearly audible. To reduce vibration transmission to the surface, JBL PROSILENT diaphragm pumps have rubber feet. On smooth surfaces, the air pump can "wander" and should be secured with a soft, non-slip mat. Mounting on the wall ensures complete decoupling. Please note that the volume can be very loud when the hoses are not connected, similar to a modified car exhaust. The "silencer" is missing. These noises are significantly reduced when counterpressure is present. Reducing the flow rate on one of the air volume regulators significantly reduces the noise level. Therefore, never operate the JBL PROSILENT model(s) with two air connections with only one air connection in "idle mode," i.e., without a hose connected to an air diffuser or similar device! This will lead to premature membrane wear and increased noise levels
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