My brother used to work on them. A restaurant would call the drink company and say the drinks were tasting funny. My brother would go and clean all kinds of crap from the machines. There were parts that the restaurant was supposed to clean, but they never did. When he was done, the drinks were fine.
Soda dispensers are rarely cleaned and can be a focal point for bacterial growth.
My brother used to work on them. A restaurant would call the drink company and say the drinks were tasting funny. My brother would go and clean all kinds of crap from the machines. There were parts that the restaurant was supposed to clean, but they never did. When he was done, the drinks were fine.