I have a little giant incubator with forced air fan. I have the plugs out, and the channels full of water. I cant seem to get the blasted humidity over 28%.... I am in south GA so humidity is not normally a problem. The room and bator temps are perfect. I even went as far as adding a wet sponge to the bator!!!!! This is extremely frustrating....please help with any advice. Thanks in advance to all you great chicken folk!