noisy Tunze 9002

[95accord]

i just received my Tunze 9002 nano skimmer. installed it yesterday.
The skimmer is still in its break in period but makes a fair amount of noise (mostly bubbling noise) and i was wondering when can i expect this noise to fully subside? once ths skimmer is fully broken-in and foam reaches the top of the collection cup?
thanks

 

[rvitko]

Raise the skimmer, water is in the airline because it is submerged too deep, the waterline should be considered an absolute maximum, ideally the line is about 1/2" above the actual water level.

 

[95accord]

ahhh
thank you