13
Troubleshooting
Symptom
Possible Causes
Solution
The skimmer produces
foam, but the foam
does not rise into the
Collection Cup.
Newly set-up aquarium or new
skimmer.
Wait for the living organisms to
produce a greater organic load and
for the skimmer to exceed an initial
running time of 2-3 days.
The water level of the sump is too
low for the skimmer and the pump
does not suck in enough water to
work properly.
Restore the minimum recommended
water level in sump.
The water level inside the skimmer
is too low.
Use the adjustment rod on the Drain
Tube (E) to raise the water level.
The foam is drastically
reduced in the skimmer
Food was administered. Some foods
contain fatty acids and oils that can
inhibit skimming.
Wait a few hours for the normal
biological process to improve the
conditions.
The aquarium may have reached a
biological maturation level such that
it produces little organic residue.
This balance is rare and is usually
not constant.
It will normally correct itself over time.
Pump or air intake system are dirty.
Disassemble and clean thoroughly
The pump is noisy
The water level of the sump is too
low for the skimmer and the pump
does not suck in enough water to
work properly.
Restore the minimum recommended
water level in sump.
The pump intake is blocked.
Dismantle the pump and check
that all its parts are in order. Check
the cleanliness and positioning of
the impeller and any presence of
limescale.
Lime and salt deposits and/or
natural wear
Replace the impeller
