Definitely agree with pulling the water pan or at least dumping the water if you are using it as your defuser. Not sure what your weather is like, but my mini doesn't like to play nice on windy days. Mine is built on a SJ Gold, so the Silvers may not be affected the same way. Something to consider.
WSM, Performer, 22.5 & 18.5 OTG, SJG, mini WSM, Summit 420, Q100, C-G Akorn, and Schwenkgrill