We were at Bay Lake Tower at the end of September, and walked over to the Contemporary Resort food court (Contempo Cafe) every day. The beverage dispenser machines had 3-4 choices to the left, ice dispenser in the middle, and 3-4 choices to the right. The two soft drinks closest to the right of the ice dispenser also had little white square buttons that were labeled. You could push them instead of the main soft drink button. The first small button was for plain water. The second small button was for carbonated water. Every day we filled our mugs with the carbonated water, then added lemon wedges which were kept cold near the iced tea machine.