1. Possible Cause: Water level is too low or skimmer is positioned in water that is too shallow. Solution: Alter water level
adjustment dial accordingly or raise skimmer in sump.
2. Possible Cause: Air line,venturi or needlewheelimpeller is blocked. Solution: Remove and check for blockage and clean as
required.
3. Possible Cause: Pumpis notpluggedin or is not operating correctly. Solution: See pump section below
4. Possible Cause: The skimmer has not bedded in yet or the aquarium is too new to produce enough organic waste to be
removed. Solution: Allow more time for the skimmer to bed in and the tank to mature.
1. Possible Cause: Evaporation causinglevel changes in the sump. Solution: Install a Reef Fill AutoTop Up System or similar, to
ensure stable levels.
2. Possible Cause: Pump,venturi and needlewheelimpeller maybe blocked. Solution: Check that the pump,venturi and impeller
are free from detritus.
Caution : Always isolate the pump from mains electricity before installing or carrying out any maintenance to the pump
and refer to the pump operation,maintenance and safety instructions supplied with the pump.
1. Possible Cause: Pumpis notpluggedin. Solution: Ensure pump is connected to power supply and switched on.
2. Possible Cause: Pumpis blocked withdirt anddebris. Solution: Clean the pump to remove dirt and debris (refer to pump
instructions for full maintenance instructions).
Problem: NO AIR BUBBLES (OR VERY FEW) ARE BEING PRODUCED INSIDE THE SKIMMER
1. Possible Cause: The air line to the venturi is not attached. Solution: Re-attach the air line to the venturi.
2. Possible Cause: The air inlet of the venturi or needlewheel impeller is blocked. Solution: Remove and check for blockage and
clean as required.
3. Possible Cause: Pump is not operating or performing correctly. Solution: See pump section above.
1. Possible Cause: Water level inside the chamber needs to be adjusted. Solution: Alter water level adjustment dial according-
ly.
2. Possible Cause: Skimmer has justbeen installed and maytake upto 24hrs to adjust properly to the aquarium system.
Solution: Let the pump run for 24-48 hours to allow the skimmer to establish itself before making any adjustments.
Problem: WATER IS RAPIDLY OVERFLOWING INTO THE COLLECTION CUP
1. Possible Cause: Water level may be too high or skimmer is positioned in water that is too deep. Solution: Alter water level
adjustment dial accordingly or reduce water level in the sump.
2. Possible Cause: Water is not being discharged through the outlet pipe assembly. Solution: Remove and check for blockage
and clean water outlet assembly as required.
Problem: THE SKIMMER IS NOT REMOVING ANY WASTE
Problem: SKIMMER WATER LEVEL FLUCTUATES
Problem: PUMP IS NOT OPERATING CORRECTLY
Problem: NO FOAM IS BEING PRODUCED INSIDE THE COLLECTION CUP
TROUBLE SHOOTING
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