Might as well take a look at this vid.
http://m.youtube.com/watch?v=X94vDbmO8t4&feature=related
Just pay particularly more attention from min 2.15 on.
After that^^^ Take a look at this thread too.
http://www.monsterfishkeepers.com/f...n-your-canister-filters&p=6503142#post6503142
I pointed it downwards, it is better IMO.