Hi Jennifer,
I use vermiculite too. You didn't mention if your putting the eggs in a covered container? I use sandwich containers (Glad?). I melt 2 holes in each side using a hot wooden match. Light the match stick, blow it out, and push it thru the inside of each side. Sounds weird but makes a perfect hole if done quickly. Wash it after. Then add vermiculite to fill half way just under holes. When you add water it should just clump together but shouldn't feel that wet. Maybe 1/4 cup water to 2 cups vermiculite. Stir well, pat down, make rows. I fit about 20 eggs per container.
Add the eggs in rows and push vermiculite against it so they're covered half way up the sides. If I see a red spot I sit it facing up. Not sure if it matters. I mist the inside of the lid, close firmly. I also sit a small cup in the incubator, half full with water, for added humidity.
I incubate in a Hoverbater between 83-86 degrees. I unplug it on hot days over 85ish because I don't have airconditioning in that room. If you've already had a batch start drying out, denting in, and it hasn't been too long. Not weeping fluids (those are bad and should be discarded before they mold and it spreads). But if denting should occur use a squirt bottle and squirt a little water around the eggs to you feel it's back to the proper consistancy, and mist the lid.
In severe cases of dryness I do the same, but also lay a quarter sheet of paper towel over the eggs and mist well with warm water. Put the lid on and leave it in there till the next day and remove. If still dented, leave a second day. I wouldn't throw out the eggs till they smell bad or have turned brownish. You don't want to throw out a baby and have him hatch in the garbage. If only 1 or 2 eggs are dented, do the same, but just rip off enough papertowel to cover those few.
Hope that helps!