Humidity for pipping duck eggs

[RosemaryDuck]

Hey all! Have a bit of a silly question. I'm used to hatching chickens, quail and all but not ducks do am a little nervous with this hatch. I've seen a ton of conflicting stuff about how high humidity should be during hatch and I don't want to drown these guys. Humidity right now is sitting at 63%. Im wondering if I should raise it to 75-80% or keep it where it is. I've got the first little guy who has a decent sized pip (dime sized) in his egg. Thanks all!

 

[LapisLazuli]

The humidity is fine, its best to keep it between 55-75% for duck eggs

 

[Lynda720]

How do you raise the humidity to get it where you need it for hatching the duck eggs?