ok , i dont want to derail this post , but i've been racking my brain about the filter for the past 2 weeks and want/need ur input on it (everyone else , feel free to give it to me too)
1) what type of media do u use in ur filter clay or this stuff
2) ur UltimaII seems good but have u seen/heard about these guys ?they sell tops that fit ur filter too!
3) here is a video of how everything works
http://www.youtube.com/watch?v=ZtgajS8ayFg
last but not least , have u had any issues with back washing, clogging, or media clumping up ? do u think its worth spending the extra money on this particular brand ?