Hi,
It's possible there's nothing wrong, but just wanted to run it by you folks. I ran some water through the grouphead on my Quicksilver Silvano without a portafilter and I notice a big stream coming down the left side. Not that there's no leakage when I use a portafilter and extraction looks ok (I'm still learning, so I'm not consistent yet), but just wanted to know if this is the way it should be. Here's a video : http://tinypic.com/r/307z19d/6

I do backflush regularly and keep the grouphead clean.

Thanks!

Hard to tell from the video, but it looks like maybe the water is coming out the side (not the mesh) of the dispersion screen. Do you sometimes remove the screen when cleaning the group?