For those of you turning by hand (I am, my older eggs), wash your hands before you handle eggs every time. I have a turner, but it is not plugged in yet since my eggs were shipped and some of them are very dark. I know a couple of the light eggs had loose air cells so I'll wait till I candle at 7 days to plug the turner in (the older eggs will be in the hatcher by then). That will give any lose air cells a chance to heal, hopefully. I don't ever lay shipped eggs on their side just in case.I set in the hatcher in a plastic egg flat since it can be disinfected for repeated use.
I don't have any waterfowl, never heard of dry hatching them. I have to add small amounts (1-2 cc) of water to my Hovabator to keep humidity levels up to "Dry hatch" levels of about 30%. My hatcher is a Reptipro 5000 and I keep a very small stone creamer pitcher (about the size of a shot glass) in it. The cabinets don't lose humidity as much as the Styrofoams, so if I have several hatching at the same time, I'll take the water out all together to keep it under 70%. I'm still getting used to the Reptipro, but I had a good Easter hatch with shipped eggs, 23 set 19 went to lock down, 15 hatched. 2 probably quit before lock down (I keep them if I'm not sure and they don't smell bad) 2 just never pipped. (you can also gently drop in a glass of very warm (95-100 degree) water and watch for them to kick, it's cool but I am not patient enough to watch for the lazy ones.)