Originally Posted by The Little Penguin
For what it's worth, according to wikipedia... In the UK Soda Water is nearly always made with Sodium Bicarbonate.
And I believe the same can be said about any "Club Soda" sold in Canada. As long as I can remember, sodium bicarbonate has been a key ingredient in club soda. I Have 3 brands here at the moment and each lists as ingredients: "carbonated water; sodium bicarbonate". And whether you order "club soda" or "soda water" here, chances are you'll be served a beverage containing carbonated water and sodium bicarbonate
Clearly the terms "club soda" and "soda water" are up for grabs elsewhere! Which reminds me...
While at a Brit car show in Tennessee last year I ordered a club soda and lemon at a restaurant and got a tonic water and lemon instead. No problem, I enjoyed it anyway, figured it was an honest mistake. Next time I ordered I mentioned that my last drink request might have been misunderstood, and could she please make sure my next drink was indeed a club soda. Well, it was tonic water again. I alerted the server of the possible error but she insisted that she served me soda...
Well... It's all clear as mud now
*edited for that darn typo... I know: spellcheck!