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Troubleshooting
Filter performance has deteriorated badly
Cause
Water circulation does not
function correctly
Too many accessories con-
nected to the hose system
Air in the filter
Cause
Location of filter
Air is sucked in
through hose installation
Diffuser is not installed
correctly
Additional air supply
(diaphragm pump)
Filter media very dirty
Filter media not
cleaned correctly
Filter media such as EHFI-
MECH / SUBSTRATpro
filled in net bags
Priming support sluggish
Cause
Sealing ring not
greased
Remedy
Start up filter by priming (as described in the instructions). Make
sure that the runback of the water (pressure joint
water surface during filling so that the appliance can vent properly
Attached accessories reduce the filter output. Check and
possibly remove unnecessary accessories.
Remedy
The upper edge of the pump head should be at least 10 cm
below the water surface. It is better to place the filter under-
neath the aquarium
Check hose connections for proper sealing, replace hoses,
if necessary
Align diffuser not in the direction of the intake strainer
Do not install discharger near intake pipe
Clean filter media
For cleaning, remove filter media from the filter media containers
and rinse out with luke-warm water
Never fill long-term filter media in net bags or nylon stockings.
This will lead to an extreme performance drop of the pump
within a very short time
Remedy
Use flattened cotton bud to grease bed of sealing ring with
vaseline (order no. 7345988)
) is above the
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