I never get this problem when hatching eggs but now I do have a problem with keeping the humidity maintained in my incubator. If I add the water to my incubator and get it at the right percentage I want it, it ends up dropping 20% in 6 hours. I don't want to have to keep opening my incubator every time humidity drops. I tried putting a towel around it but still doesn't work, air just escapes out of it. Any ideas? 
