I never ever add water for in the before lockdown stage
I only add it at the lockdown
I generally will turn on my still air incubator (I use this only for lockdown, as I find the fan dries the water up too fast the other way) a day early, add the water check it, make sure its 70 or under, then move eggs off the turner in the other incubator, and into this one
Then I refill the egg turner in the bigger one, and move on
I found my hatch rates have increased a lot doing it this way, BUT I only did 2 hatches so far this way If I keep getting 90% on the hatches, then I will hatch only once every 3 weeks then