Unhealthy Clutch?

[Annarose15]

How can I increase the humidity?
My friend is spraying the vermiculite for approx. 30 seconds, 2 times a day, as well as the sides of the tub that the eggs lay in, and one spray directly on the eggs..

Also keep in mind that the humidity is not 100% accurate, as the sensor is on top of the incubator, pretty close to the heating elements that the incubator uses to heat up the eggs...
I am not sure how much more humid the incubator actually is...

It doesn't matter what the hygrometer is reading for humidity. You can tell the humidity is too low because the eggs are collapsing inward. In addition, you should be measuring the humidity INSIDE the egg tub, not just in the incubator in general. You should not have to spray the inside of the tubs daily, or even weekly. The way I see it, you have two options: 1) Add saran wrap or press 'n seal to the top of the tub to hold humidity in better (under the lid). This still may not be sufficient if the substrate isn't wet enough. 2) Get some light diffuser (plastic grate sold at Home Depot, etc.) and set it on top of the substrate. Add lots of water to the substrate, but do not add so much that it can touch the underside of the eggs. Then, place the eggs on top of the diffuser. Add press 'n seal to the top if your humidity does not skyrocket after doing this.