Filter Materials For Problem Solving - JBL CristalProfi e701 Manual De Instrucciones

Air in filter
Cause
Connection of telescopic suction pipe is above
the surface of the water
Filter is positioned too high
Hose installation leaks and draws in air
Airstone too close to suction pipe
"IN" and "OUT" hoses mixed up
High flow resistance due to dirty filter material or
filter material in net bag
Stopcock on pump head stiff
Cause
Washers do not glide
Fish dead and/or water cloudy
Cause
Nitrite poisoning due to too rapid change from
"old" to "new". Cleansing bacteria thrown away
with old filter.
Filter material for problem cases
12
Filter material with foam edging:
The following filter material sets are constructed according to a new two-stage principle which
is specially designed for the CristalProfi Filter "e" range. It is comprised of a core and an edging
section. The core is made up of a relatively fine special filter material requiring a finely meshed
net bag. The edging comprises coarse foam. With this design, the water flows slowly through
the special filter material giving optimum efficiency whilst at the same time the total water flow
through the filter is obstructed as little as possible thanks to the coarse foam edging. The size
28
Solution
When carrying out a partial change of water,
siphon off water to approx. 5 cm above the
connection only. Otherwise disconnect plug.
The top of the pump head should be at least 20
cm below the surface of the water, the further the
better.
Check all connections are airtight and fit correctly.
If air is additionally provided by a membrane
pump, check that there is sufficient distance
between the airstone and the suction pipe.
Reconnect hoses correctly
Clean filter material and do not fill long-term filter
material (JBL MicroMec, JBL SintoMec) in finely
meshed net bags. For special problem solutions,
only use the original CristalProfi filter material
with the appropriate foam edge.
Solution
Dismantle hose connection block (7) and spray
the stopcocks with commercially available silicone
oil. Reassemble hose connection block and move
stopcock backwards and forwards a few times.
Solution
Run an old and new filter parallel for 2 weeks in
the same aquarium or incorporate 1/3 of the old
filter material in the new filter. Never carry out a
"general clean up" of the aquarium at the same
time!
(available at your specialist retailer)