A lot of people are really boasting about this "dry hatch". I haven't incubated in a couple of years and pulled my incubator out for this recent batch of eggs I just had shipped. The eggs have been sitting at room temp for a couple of days while I'm trying to get the temp steady in the incubator. I'm running a humidifier in my bedroom where the incubator is and I have an external temp/humidity gauge hanging over the incubator that says the humidity is between 20-30% (it's VERY dry here in TX!) and my humidity in my incubator has been holding at 20%. It's a forced air with only 1 vent and plug and a hole over the fan. Everything I've read says to keep the plugs out til day 18 then put them in to keep the humidity up, so my vent plug is currently out. The humidity is holding but the temp keeps fluxing from 98.4-102 on my digital gauge. I have 3 standard mercury thermometers in there and 1 is reading at about 98, another about 102, and the third reading about 100. Should I leave the temp as it is or adjust the wafer (up or down?) and should I add just a bit of water to the center tray? Maybe put the plug back in?