I'm having a terrible time maintaining a constant humidity (acc. to my thermometer/hygrometer)!! Temp is great but I can have the humidity at 55 at 4 PM when I leave school. When I get back in at 8 AM, the humidity has gone down to the teens. The school turns down the heat overnight. Is that the issue? I'm using a hovabator 1588 genesis. Has a fan. If I actually fill the channels, it is too much moisture so I put in what I need to maintain 40-60% Am I worrying too much? Is the last 4 or 5 days the most critical for humidity. I have heard so many different responses as to the "correct" humidity, I don't know what to believe. At lockdown, is 70-80% good to maintain? I will try a sponge to see if that makes a difference in controlling the humidity. I have had some chicks in the past that were fully developed but never pipped or made it out. Why? My hatch rate can range from 86% down to 50% and I'm never quite sure why. I try to do the same things each time! Frustrated!
K.....
That should be fine - when the incubator runs dry before you fill it up again it's called a "dry hatch." That's how I do it. I let it run dry and then fill it up again. The last three days are the most critical and that's when you really need to worry about keeping the humidity up. Otherwise just monitor the air cells and adjust as needed. How are the eggs doing? Any signs of life yet?