From what I've read it could gunk up but I'd rather have to clean something and it run quietly than not have to clean it and it run loud. As for taking it apart it looks hard. Maybe a heat gun to melt the glue holding it together. Im just gonna run it until I can afford a good pump.
crap, the new one has decided to be much more annoying now...it's only been up 24 hours, bah! I am going to complain to XSPC again ... this is intolerable, I quadruple checked anything that could cause this rattle too.