Don't give up just yet - I had one hatch on day 25! I had really given up - on day 23 I stopped monitoring the bator, but left it plugged in. There was no water when I opened it on day 25 and only 3 eggs. But I candled each egg before tossing and saw one with a beak in the air cell. Filled up the water and she hatched within 8 hrs.