Due to several gastro issues I can not have bevearages with acid, sugar, caffeine, or bubbles. I have more problems with beverages than food. Thre only thing I drink is water. Herein lies the question. We are not on the DDP we use a TIW card. Can I order plain tap water for free with dinner at a TS restaurant? I really don't want to purchase bottle water as I usually only have one or two sips. I did a search but didn't find my answer.