Using a still air styrofoam bator. Last hatch went perfect. 12 of 14 hatched. 12 in now and all candled right on target so we locked down on Saturday. Took the eggs out of the turner. Put a paper towel down. Humidity is going hay wire. Will drop to 40 and then go back up to 90 when i add water through one of the vents. Set to hatch Tuesday so I dont want to open to add water. Not sure what to do. Any advice would be appreciated.