Thanks, Guys. Not wanting to risk a damaged diaphram, I will unplug my airline at the T-Valve (if I can get it off of there) and let the air blow out into the open. In Edinboro, we get a lot of lake effect snow and the ice gets pretty covered. Or, at least that has been the case. I am hoping for better consitions this winter. Yet, I don't belive I experienced any fishkill in the past couple of winters, as I saw no physical evidence this past spring. Not that there weren't any dead ones on the bottom that couldn't be seen. Right now, I have my Koender's stone in 4 feet of water about 10' off shore. I have no freeze control with my system. So, I will probably do my unplugging at the end of this month to prevent any freeze up damage. I don't believe I have any other options available to me unless I add the anti-freeze system.
