This is my second time hatching in my homemade cooler bator. The first time I hatched out 8 chicks out of 24. The eggs were bought from mc murry and shipped. I kept them out of the bator for 24 hours. My temp stayed between 99 and 100 the humidity stayed around 50% and the eggs were turned twice a day till day 18 When they went into lock down. On the night of day 19 I noticed one was starting to hatch. All 8 hatched within 24 hrs. The temp. stayed at 99.5 through the whole hatch. The humidity was around 50 until lock down, when I tried raising it but could only get it to 55-60. On day 22 I opened all eggs to find 4 more that were fully developed But had died. Since hatch 1 I modified the bator with a homemade turner. I moved the water pan to a shelf close to the glass top & moved the 12 volt fan so it blows directly on the bulb. I switched from a 100w to a 60w bulb & put a shield on the bottom because it is closer to the eggs due to the turner with the mods. I did drill 2 more holes for the turner so there is more venting. I use a springfield precise temp. therm.humid and a dial probe thermometer I used for maple syrup put between a ziplock baggie filled with water that's wrapped around the probe, & I lowered the temp. to 98.5 thinking that the early hatch was due to high temps? The pan for water is a bit bigger than the one that I used on the bottom. A problem I'm having now, is when at 50% there's alot of moisture on the inside of the glass that I use for the lid. Should I cotton ball off some of the holes, & what do you think happened to the 4 that died. My buddy & I have 48 local (non shipped) eggs ready for hatch #2. I'm hoping for at least 50% this time. P.S. What type of store (locally) sells the good hydrometers that I have read about on BYC? Thanks!