i've got a via aqua 1300, and its vibrating like all hell. Was wondering if its just a sign of it going bad or just somethin needs cleaned or what. I havnt examined it too hard core, but it seems to not have any external screws to take it apart. Has anyone taken it apart, or do you reccomend trying that? Or should i just bite the bullet and buy a new pump.... as far as age, its probably under a year old :-\ but its had continuous use.