I was reading the post about calves drinking water and it made me think of a follow up question. At what age do calves start to drink water? The reason for asking is that the pasture where I keep my cows doesn't have water so I have to use a water tank. The water tank is about two to three feet tall. Should I be nervous about the little babys not getting water, or are they to young to drink out of a tank. Thanks KR