Hi, I have a Pro Series Circulated Air Incubator, model 4200, from Farm Innovators. The directions aren't very clear on how it works. It is my first time using this incubator. I am supposed to put water in the bottom of it? Where am I supposed to put the little thermometer that comes with it? If anyone has one and knows how it works please help. Also if you have any advice on hatching chicks for the first time would be appreciated. Thanks!