I borrowed two incubators, one is a Hova Bator circulated air without an automated turner. The other is a Marsh Automatic Incubator manufactured by Lyon. It has an automatic turner. The Hova Bator has been maintaining it's temperature fine. I found instructions for it on the internet. This Marsh one that I borrowed looks nasty (dirty) to me and like it has not been maintained. I'm a little scared of it. Would I be better off to use the cleaner one and turn the eggs 3 times a day? Or should I try to clean the nasty one and not have to mess with the eggs so much? And what's the best way to clean it? I'm waiting on shipped eggs right now.