I am trying to test run my incubator. The problem I am having is with the humidity. I can't seem to get the humidity in the 40-50 range. When the incubator is closed, it goes up to 85%!! When I open the incubator the humidity goes down to 49%. If I take the hygrometer out of the incubator is stays around 49-50%. I have 2 ventilation holes open and I have an Autowater tube which I have the end open as well, so it counts as a ventilation hole also. The funny thing is , I started out with water in the pan, but since the humidity was so high, I took ALL water out and it is still running at 70% humidity! I don't understand it. Any help would be appreciated.