Fault
CO
2
bubbles come out
of the pipe but do not
rise or stop after the
first step.
Bubbles wobble back
and forth, but do not
rise.
Gas is escaping out of
the side of the collector.
The CO
2
bubbles no
longer travel up the
steps of the CO
2
Flipper unhindered.
Cause
CO
2
FLIPPER not moun-
ted vertically.
CO
2
FLIPPER still in the
running-in phase.
Too much water circula-
tion.
CO
2
FLIPPER not moun-
ted vertically.
Waste gas vent of the
CO
2
collector clogged.
CO
2
collector has not
been attached straight.
Algae growth, small
snails or sludge depo-
sits in the CO
2
Flipper.
Remedy
Mount CO
2
Flipper ver-
tically.
Wait till the end of the
running-in phase.
Reduce the water circu-
lation or attach the
Flipper in a calmer spot.
Mount CO
2
Flipper ver-
tically.
Clean CO
2
Flipper.
Detach collector and
reattach it properly.
Clean CO
2
Flipper.
7
DENNERLE Profi Tip:
• Always protect your valuable pressure reducer against corrosion caused
by intake of water! To do so, use only check valves designed for use in
combination with CO
2
, e.g. the DENNERLE CO
2
Special Check
Valve. Normal air check valves may become brittle and leaky through
contact with CO
2
within only a short space of time. Often this occurs
unnoticed.
The right amount of CO
2
For magnificent plant growth, DENNERLE recommend a CO
2
content in the
aquarium of between 15 and 30 mg/l, whilst between 20 and 25 mg/l
is ideal. The number of bubbles per minute required to achieve this CO
2
con-
tent depends on a number of factors (types of plants used, water current, sur-
face area/volume ratio, etc.). This is why it is always necessary to determine
the CO
2
amounts for each aquarium individually.
Rule of thumb for the basic setting: start with approx. 10 bubbles per minu-
te per 100 l of aquarium water, i.e. for a 200-l aquarium, for example, use
2 x 10 = 20 bubbles per minute.
Check the CO
2
supply and the CO
2
levels in the aquarium water regularly
and adjust the CO
2
supply if necessary.
Warning: if necessary, only ever increase the CO
2
level gradually over the
course of several days!
Please note: the more vigorous the surface of the water is set in motion
(e.g. by filters, additional aeration), the more CO
2
will be expelled from the
aquarium again.
DENNERLE Profi Tip:
• It is easiest to measure the CO
2
content using the DENNERLE CO
2
Long-term test Correct. The test directly and permanently indica-
tes the CO
2
content of the aquarium water on the basis of its color.
GREEN corresponds to the optimum value of between 20 and 25 mg/l.
Further aids or water testing to determine CO
2
levels are not necessary!
Cleaning the CO
2
Flipper
1. Take CO
2
FLIPPER out of the aquarium.
Extract CO
2
collector vertically.
2. Place CO
2
FLIPPER into your left hand, so
that the suction cups point towards the
right. The open side (which holds the
collector) points upwards.
· Slide front side wall of the Flipper
upward by approx. 2 cm.
3. Remove the side wall.
4.
Remove the CO
2
hose, do not pull it out. Now
clean all components of the CO
2
Flipper with warm
water and a soft sponge. Do not use any deter-
gents. Reassemble the Flipper in reverse order.
Attention:
reinsert the CO
2
hose into the side wall
so that the lower end is at the very bottom of the
reactor.
What do I do if ... – trouble-shooting
The CO
2
FLIPPER operates reliably and problem free and does not require
any special maintenance. Should it not function properly, however, the
faults are very easy to locate.
Spare parts and useful accessories
(available from specialist dealers)
1515 2 Longlife suction cups
3060 Special CO
2
Softflex hose, 2 m
1556 CO
2
bubble counter
3053 CO
2
special check valve
3040 CO
2
long-term test correct
Seek advice from your local specialist dealer about the DENNERLE aquari-
umplants and accessories range or ask for our information brochures!
Sales: DENNERLE GmbH, D-66957 Vinningen
Customer service: DENNERLE GmbH, D-66981 Münchweiler
www.dennerle.com
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