I just bought a new Lyon TurnX7 incubator. I have it up and running. The dry bulb temp is at exactly 99.5 degrees. Wet bulb is reading 87.5 degrees and it is supposed to read 86 degrees. To make the wet bulb read lower temps do I add water or take water away? The manual is only clear on how to set the wet bulb temps, not to correct my "oops." I have eggs ready to put in the 'bator but I hesitate to do so until I have the settings just right. I've used other TurnX 'bators but they were borrowed and it has been a number of years. Will it be death to my eggs if I put them in at this slightly higher humidity? Thanks!
I know this is an old thread, but I wanted to respond for historical purposes. Assuming that the wet bulb is actually wet, the greater the difference is between the dry bulb temperature reading and wet bulb temperature reading, the lower the relative humidity. There is a good explanation of this and more on Wikipedia. To the OP's question, you need to subtract or reduce water vapor to make the difference between the dry and wet bulb readings larger. On the Lyon Turn-X incubators this is done by screwing the water bottle clockwise, lowering it into the plastic nut. It will take a while for the wet bulb reading to change, as the "extra" water must evaporate before the air can dry. You can accelerate this drying process by manually wiping out the water from the last water tray in the chain of trays using a paper towel.
