I was going to post a ? on how to train my 20+ wk old girls how to drink from water nipples when I saw all the post about how they are naturally courious and will take to it naturally. OK! 6 days in and my water level hasn't dropped. Yes the bucket is vented. Have repositioned height three times? Tonight I tried taping watermelon bites to the bottom near the nipples. (Crochet thread thru the melon, melon about 3 x size of nipples) Not sure if it worked. This morning I gave them a large bowl of water which they attacked and almost drained. living in NE a water bowl is out of the question in a couple of months. HELP!!!!! No wonder I have a flat forhead.