How does the Dial button work?

The Dial button controls the flow of syrup whilst you’re drinking and lets you adjust the intensity of the flavour: 
Level 1 - Infuse Me: light, subtly flavoured water. 
Level 2 - Gimme More: more flavour than Level 1, but not as sweet as a classic soft drink. 
Level 3 - Stay Classic: classic soft drink flavour. 
Level 4 - HOLY Sh*t: for anyone with a sweet tooth who likes things a bit more intense. 
Level 5 - OVERDRIVE: maximum flavour intensity. 

Can you sort that out? You can adjust the flavour to suit your tastes at any time.