I put together an incubator of the five dollar variety. The temp is working great but I can't get the humidity above 32%. The whole bottom of the incubator is a tray that is filled with water covered by a plastic screen tray. I also have a wet sponge directly under the fan. Are there any other options for increasing the humidity? To give you an idea our humidity level in the house is at 27% with our humidifier running it can get up to 37% but when it is off goes back to the 27%. Can you have a successful hatch with low humidity? I have this week to get it figured out because we started saving eggs today.