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The air passage can be reduced as a result of dust deposits in the ozonizer. This can
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result in an increase in the water level in the skimmer, which - in extreme cases - can
overflow. To avoid this, check the ozonizer regularly to make sure that there are no
deposits of dust. If necessary, clean it.
Never breathe in free ozone.
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The ozonizer may not be directly connected to the air valve or silencer.
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In order to avoid water damage, the ozonizer must be placed high enough to ensure
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that no water can penetrate it when the skimmer pump is switched off.
If the skimmer is used with new water on an aquarium it is common to find an excessive
quantity of small bubbles produced and often the skimmer cup fills with a clear liquid. This
is due to the high surface tension of the new water which prevents the bubbles from
bursting. Once the water matures this effect will go away but can take up to 2-3 weeks. The
effect is different on different salt brands and is often dependant on levels of conditioning
agents added to the salt. Once these are skimmed out then the skimmer will act normally.
Heavier feeding in the initial stages will give the chemically pure water something to react
with and allow it to mature into proper aquarium salt water rather than the initial chemical
soup which is new salt water.
Malfunction
Pump produces insufficient
air
excessive air bubbles in
aquarium water
Fresh salt water
Fault finding
cause
tap, airline or venturi
blocked
airline kinked
ozonizer blocked
Pump flap blocked
caused by additives in
certain sea salts and
water conditions
air tap closed to far
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remedy
clean
remove kink
clean
Clean (see 10a)
use different salt or feed heavily for a
period, empty skimmer cup frequently, open
air tap fully. This condition may last for
several weeks.
open air tap
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