Hi All
The problem with the drinks pumps is not on the technical side, each drink has its own feed tube on the mulit type dispenser, so there should be no cross contamination as it were from full fat drinks,
The same for the individual drinks dispensers, they are just single tubes, so no chance there.
It all comes down to the staff connecting up the correct type of concentrate for the dispenser itself, if the person refilling it puts the standard drink concentrate into diet dispenser no one could tell untill its tasted,
As suggested above the only answer is to buy bottled or take your own drinks,
But i also want to congratulate you all for being so self aware and taking care that everything going in to our lovely diabetic bodies is as safe as it can be, as with eveything its always best to ask,
I am always of the opinion there are no stupid questions, except the one thats not asked
have a great day all
Crofty