Eggs are porous the hen secretes a film on them when laying that keeps out bacteria. if you wash them they are subject to the bacteria getting into the chick inside.Oh I never washed the eggs. They are always pretty clean.
Good luck on your hatch as well. What kind of chicken?
I turn mine night and morning. I'll probably turn in the middle of the day too. I know the more the better.
dirty eggs will hatch too. doesnt matter
Amd refrigerated eggs...i have read ppl on here who had some hatcch nicely
Some even suggest if your heat goes out and you Aare incubsting to refidge them!!(not sure why... cool in the bator or in the fridge.) but i guess they hatch later anyway.
All seem worht trying though GOOD LUCK!