Aqua Medic Kauderni LED Operation Manual page 19

4.5. Starting/Operation
The system can be started when the Turboflotor is correctly installed. After switching on the pump,
air is automatically drawn into the skimmer. To minimize the noise level, connect the air inlet tube
with the blue connecting piece of the silencer supplied. Fix the silencer with the holding unit (15)
on the back side of the filter partition wall. Please wipe the wall with a dry cloth at the requested
place, take the foil off the holding unit and press the unit tightly.
The mesh wheel breaks air into small bubbles. This method eliminates the greater proportion of
noise. After the initial start, some hours may pass before first foam is pushed into the collection
cup. This is due to a reaction between the surface of acrylic glass and aquarium water. Equilibrium
of electrical charges takes place. After a maximum of 24 hours, the foam should be pushed evenly
into the collection cup. The quantity of liquid and organic substances is dependent on the pollution
of the aquarium.
4.6. Problems
Adjustment
The skimmer is adjusted using the water level controller so that it works to its optimum. The water
level in the skimmer has to be adapted to foam production. If the foam is too wet, the water level
controller (4) has to be further opened and thus the water level lowered. If the foam is too dry, the
process has to be done vice versa. The water level in the filter is regulated by the slide
control (5) in front of the last filter chamber so that the water level is underneath the
skimmer's discharge. If the coarser round grids are inserted instead of the finer ones, the water
level below the shield may drop. If you fill it up with water until the water level reaches the shield,
usually the skimmer's discharge will be jammed. In this case, use the finer round grids (they are
only inserted).
Air bubbles in the outflow
If the skimmer is added to an existing aquarium, there may be a high concentration of organic
substances already dissolved in the water. This results in very tiny bubbles in the skimmer. These
tiny bubbles remove organic substances effectively, however, it may happen that some of these
bubbles are drawn back into the aquarium. After a few days, the concentration of organic
substances will have decreased to such low levels that this effect will have gone and the water flow
is free of air bubbles.
Very rarely, there's a reasonable adjustment in new established aquaria. Either the skimmer „cooks
over" or „bubbles "without foaming power. This is normal and will be settled by itself as soon as
living animals will be in the tank.
Some types of frozen food may have the same effects. It is best to thaw and wash the food prior to
feeding it to the fish. The air bubbles will stop after a short period by themselves. If the air nozzle
or air hose are blocked with salt or lime deposits, less air and more waters is sucked in. In this
case, clean both completely.
Wet foam
With freshly prepared sea water or after using water conditioners or at extremely high loading,
excessive wet foam may be produced. This wet foam is forced into the cup, requiring more
frequent emptying than normal. After approx. one day, the aquarium load should be normal and
the skimmer will produce correct foam. Lower water level in the skimmer by turning the water level
controller (4). Maybe clean the air injection nozzle, hose connection and hose of deposits.
Dry foam / not enough bubbles
Not enough or too dry foam could be an indication that the mesh wheel or air injection nozzle are
dirty. A thorough cleaning is recommended. Remove pressure nozzle from the pump. If it's not a
problem of cleaning, increase water level inside the skimmer by the water level controller (4).
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