An accurate account of water use is important in today’s expanding hog industry. This will indicate the size of wells and manure storages that are required. Data from nine similar farrow-to-finish operations were collected, and it was found that total water use for all phases averaged about 89.5 L/sow/day, 80% is used for drinking, total water for different types of operations were in general agreement of the guidelines, and more. The highest per head usage was in the farrowing phase, and then gestation, grow-finish, and nursery. The grow-finish phase had the highest percentage of total herd usage, followed by gestation, nursery, and farrowing. Daily manure production was the most in farrowing, then gestation, grow-finish, and nursery. Grow-finish had the highest percentage of total herd production, followed by gestation, nursery, and farrowing.