[genie86333]

I can't tell either. Luckily last time I ordered a soda at a restaurant I had a friend who can tell (but still likes diet) with me, because she took a sip & said they gave me the wrong soda. When I tasted the both of them one after another I could tell she was right, so we just switched drinks.

The next refill, she told the waiter just to give both of us diet...he brought 2 regulars...we think the hoses were crossed somewhere. We brought it to our attention & he got some diets from another machine & they tasted right finally.