How big are the 6 bottles?? And what's the sweetener?? Aspartame or Splenda?
Yes, you can count it towards your water intake....but it's probably not a good idea to ingest THAT MUCH artificial sweetener every day.....
Here's another good drink: 1 can 0 cal, etc Seltzer water + 1 cup Light Cranberry Juice or Red flavor (Cranberry/Pomegranite, etc) Crystal Light + dash SF Lime syrup....YUM!!