Hi all-I am on my second batch of eggs with my 1588. This time we have had some really hot weather and I've had two days where the humidity dropped way down. What kind of effect might this have on my eggs? I think I've got it going back up again today, but it was low for at least part of the day yesterday and last night.
How many days into incubation? I think high humidity is more of a danger during incubation and lower humidity a danger during hatching. During incubation,as long as my humidity is between 35% and 50%, I don't worry much about it.
Ok-it's about a week and a half into incubation. I think the lowest it got was 30, but mostly it was 40ish.
I'm running one of my 1588's and I didnt fill the tray marked "C" up. just a small amount of water. My humidity in the room is around 45% on average. My humidity readings are about like yours, they will average about 42%, and ranging at the end of a 24 hr period to a low of 32%, but when I add water its back up to 45%. I try never to open the bator. Here is how I add water, I take a syringe and a straw go down through the red plug hole and add 30cc per day. Keeps me from opening the bator.
My incubator has been running at 45% humidity all year so far and I switch my eggs over when they pip to the hatcher which has very high humidity and haven't had any chicks dry out at all this year.