Humidity Problem!!!! Help!!

[HomeHatcher22]

This is my first time hatching quail eggs, I have a medium sized incubator and I just can't seem to be able to get the humidity over 45, I am on day 15 and can't seem to get the humidity up for lockdown!!!!! PLEASE HELP!

 

[C3 mommy]

I used a Chinese take out lid filled with water and marbles, got my humidity up to 75%. The more surface area the higher the humidity will be!