hi all, i recently purchased the Emperor 280 with Bio Wheel. i have not used these types of filters for some time and decided to get it for my sons tank. anyways, i just installed it and was wondering if any of you guys have had problems with these filters. the problem that im having is noise. very loud. as if there was sand in the impeller. well, the tank is empty so i know there is no debris in the filter. i have taken the filter apart to make sure that is was free of obstruction. still i hear the noise. is there a break in period for this filter. i have never had a problem with noise with any other filter. please post your thoughts.
Rod ps here is a picture of what i got
Rod ps here is a picture of what i got