I don't know your bator set up but there is a few ways to raise it.Can someone please tell me how I raise the humidity in my incubator without raising the temperature of it? Its been reading at 45% humidity and 100 degrees. It'll go up in Humidity if I raise the temp but I obviously don't want to do that when it comes times to hatching eggs. I have a bowl of water in there and just added a sponge to the dish to see if that helps at all.
1. More water surface area. Water can only evaporate by the area that actually touches water. Yes raising temp can help because it will speed up the break down of the water. But a larger area will release more.
2. Close some vents. Make sure you have enough to let the chicks breath in and out of egg though.
3. Raise the humidity in the room you are incubateing in. If you can get a room that holds a steady temp/humidity you can adjust your bator easier.
So far in my house I have the bator in living room next to my desk. With no water added I hold a low 30's. That's with the ac window unit holding the room at around 70. I don't know the humidity in here though. That's with the big vent closed in top of my bator closed and only using the smaller one where the fan is. Today I wanted to up it some more so I added 4 tsp of water and it was jumping up to 50's so I took the vent out and now it flexes mid to high 40's for humidity. This is day 7/8 for me and i'm using a hova-bator genises 1588 with the 1611 auto turner. This is my first hatch so I've been reading a lot on it but those are the ways that I've seen and have read about.
Some people use a sponge to help make more surface area. Not sure if they lay it on top of the water using the sides of sponge as more surface area or if they set it on side up and down so water will wick up it and make more surface area. I also heard of people takeing damp/wet paper towls and draping them in the bator.
If none of this helps i'd try google its what I use for a lot of my questions then you get a lot of answers and can see what works for you.
jlaw