Instructions
Move the camera angle until you have found a spot to place the water bowl inside the cage. Click on the "Animal Items" button in the bottom left part of the screen.
Scroll through the items in the new dialog box until you find the "Water bowl." Click on the water bowl. To select it press the check button on the top right of the box.
Click on the ground inside the cage to place the water bowl for your animal. Your zoo keeper will automatically fill the water bowl each time they care for the animal.