What's a floodgate?

OK,
I've just bought some Rock Shox SID team forks (2006 model). I appreciate they're going to need a bit of fiddling with to get them just right for me, but the one thing I'm confused about is what the "floodgate" does. I've downloaded the manual and apart from identifying it in the diagram on the first page, there's nothing. I know it can be adjusted, but why? And what difference will this make?
Thanks.
I've just bought some Rock Shox SID team forks (2006 model). I appreciate they're going to need a bit of fiddling with to get them just right for me, but the one thing I'm confused about is what the "floodgate" does. I've downloaded the manual and apart from identifying it in the diagram on the first page, there's nothing. I know it can be adjusted, but why? And what difference will this make?
Thanks.
0
Posts
An answer I can understand posted just minutes after my question. Nice one!!!
I find that I hardly ever use my floodgate adjuster, I rarely have the forks locked out, when I do its for climbing and I'm usually not going quick enough to allow much movement in the forks! Slow-censored climber!