I've had some not so great hatches lately, some of which I'm thinking is one of my roo's fault, but I have been noticing that I'm having some temp issues with my incubator. I have it in my living room, which is the most temp stable room in the house. I have two thermometers and a hygrometer in with the turner, both sitting on top of the eggs. It seems like it takes the incubator forever to heat up, and when it gets up to temp, it's fairly stable, but it's hard to get it to stay up where it needs to be. I've also noticed that I'm having issues with keeping the humidity up. I saw that my wafer had some chick fuzz on it, so I took it out and cleaned it gently with a toothbrush. I saw that it has some spots on it that look like the sealant on the top and bottom is flaking off (I thought it was rust at first). Do I need to be concerned about the sealant? Could the chick fuzz have been interfering with the wafer heating properly? How long can I expect one to last? I've had this incubator for three years now, but I don't use it but maybe 6 mos. out of the year.