ok bought a humidity meter, we are on day 19. i put meter in about 20 min ago it is on 56% now. i know i need it higher but trying to have patience to let meter read. how long should i wait to read a correct reading? both water trays are half full as directions for bator said. eggs appear to have wet spots, is that normal? it just looks like a water stain not water beads. what should i be looking for?