The last hatch I had, I started with filling a resevoir in my 1588 with water. I never added another drop until lockdown. I have a sponge in each resevoir, and I fill them all up. Gets it to 70%, no higher than 80%. I hatched 18 of the 19 eggs. I am trying that again this time. My incubator is in the garage, and does not seem to be affected by the weather. I holds the temp dead on and the humidity gradually falls.