I just purchased a Little Giant Still Air Incubator and I am not clear on the instructions for the humidity and air... Do i have to remove a red plug for air flow or is there enough air in there between turnings? I had the humidty and temperature perfect until I opened one of the plugs...
I just went through all this with the LG. You will find on day 18 in the winter it is near imposable to raise the humidity to 60-65%. This is what I did. for day 1-18 fill both reservoirs. Leave one plug in and one plug out. On day 18 top off the reservoirs and add a regular sized bowl half full with a sponge in it then I closed both air holes. Note that most people will say don't do this because it cuts the oxygen exchange down. I just had a very successful hatch but I did only have 5 eggs in there. I imaging if you are hatching lots of eggs at once you would want to keep the plug out of the air holes.
THe details that Chookschick posted on her page is VERY helpful. ( The direction with the LG are confusing and talking to someone at LG was not any better) I followed CHooksCHicks methods and had a good hatch the FIRST time.
Get the LG running at the temp and humidity you want with ONE plug in, then as it moves up or down a bit you can put in one plug or remove one plug. Works really well. ALso consider the dry hatch method. Much easier. Here is a link to the link.