All my incubators are designed to dry the air inside the incubator to be able to incubate and hatch in the same incubator. There is no more setting eggs and no more counting days to hatch. It doesn't need a lockdown or water added to it. You can actually cleam the incubator while it is running to clean any chick dander off of interior parts so they can run continuesly. Hatch humidity is between 10 and 25%.