I think that a water filter could be a good thing.... most of the time I'd use it as a water filter, but for that once-in-a-while brew that just doesn't clear I'd be willing to try filtering it with a new cartridge in the housing.
In Primary 2:
Shaggy Brown Ale
In Primary 3:
Snowy Mountain APA (kicked), Nameless Pale Ale
My Blog: http://kking.wordpress.com/