As a result of many positive reviews seen here and elsewhere I got a Genesis [1588] incubator and turner for a first time small number of eggs project. I have a difficult time seeing if there is water in the water reservoir even when I am adding the water. It seems very inconvenient to open to add water and to candle eggs. Should I be concerned about temp drop as a result of the opening and closing for these chores or am I being overly concerned?