Related Clues:
- Pepsi or Coke
- Word with ''water'' or ''fountain''
- Caffeine source, often
- Output of some fountains
- Pop, elsewhere
- RC or Jolt
- Fountain choice
- Vending-machine offering
- Fruit juice alternative
- Gin fizz ingredient
- Scotch and __ (bar order)
- Scotch diluter
- Bubbly, brown potable
- Carbonated water
- Popular mixer