BuddyPress.org

I’m in a process of writing my own plugins for BuddyPress. But I faced with the problem – I don’t understand how to remove filters (while I do know how to add them). What I mean:

I want to change function bp_get_blog_description(), which has this code inside:

return apply_filters( 'bp_get_blog_description', $blogs_template->blog['description'] );

As I understood I need to remove this filter (to add then my own with my extra info).

remove_filter either don’t work or I don’t understand how to use it.

What could you advice me?

Any help would be appreciated. I can just catch the idea if there is no clear solution.

Oh, BP1.0 and WPMU 2.7.1 (unuseful info, I know).