Aloha, newbie here also. I have asked this question and gotten three answers from experienced breeders with the GQF cabinet models.How do I up the humidity on the bottom hatcher without it getting too high on the other shelves. That way I can continue incubating and not giving the other too much humidity when not needed.
I'm in day 4 of my first-ever set. For this one, I set all at once and will do the dry-incubation, no water until day 18 unless my initial candling/weigh-in shows me things are too dry. I gather it is an equation that is different for everyone depending on ambient temps in the room, room RH, etc. The person I am most inclined to take advice from who LOVES the Sportsman model just increases RH for 3 days prior to hatch of each set and sets/incubates continuously...but probably every week at most so there is an interval. In his method, the "younger" eggs are getting extra moisture a couple of times for 3 days each time and he has no problems.I have a sportsman incubator as well and have been hatching for almost a year, fairly continuously. I have had a problem with shrink wrapping in my chicks that are trying to hatch......At this point what I've tried with varying success is to cut a small piece of a sterile sponge (like 1" x 1"), soak it in water and place it in the bottom shelf with eggs ready to hatch. The overall humidity will raise sightly but it hasn't had a real effect on my other eggs that are in other stages of incubation. The sportsman is a great bator but I believe the ideal situation is to unfortunately have a small separate hatching bator.
How do I up the humidity on the bottom hatcher without it getting too high on the other shelves. That way I can continue incubating and not giving the other too much humidity when not needed.
That kind of sounds like spousal unit permission to hatch a LOT of eggs!You can't, not really (not without a lot of juggling anyway.)
That's the thing. You really can't successfully use a Sportsman for both setter and hatcher. One way or another you're going to get the humidity wrong for part of what you have in there.
Do you have a small styrofoam incubator you can use for the hatch portion? Use the Sportsman as a setter and the styrofoam one for the hatcher?
Ideally you will reach a point where you'll have one Sportsman with rotating trays as a setter, and then have another you use just as a hatcher. But you'll need to hatch a lot of chicks a year to justify that (or so my husband told me when I bought the second one!)