I think I can add the humidity pump, if I'm not mistaken. The first time I use it, I will probably turn by hand. I also work from home, so turning it 3 or 4 times a day would be no big deal. I don't know what went wrong with my last hatch, but probably 30 percent of my chicks ended up shrink-wrapped, even though my humidity ran around 60 to 70 percent from day 18 through 21 and I FORCED myself this time not to open the bator. As I said, very disappointing.