winddancer":o59r42rf said:ok one more silly question.when you speak of the vent hole on bottle,you're not referring to the hole in the nipple? we've had to enlarge that a bit....
No not the nipple. If you use the kind that many of us use it is a slip over cap with a nipple made onto it. If you look at the portion that slips over the lip of the bottle you will see a little dot (depression). This is the vent hole and from waht most of us have seen is never open. The calf will start sucking and in a short time can't get anything out because he has pulled a vacuum. Hope this helps.