I currently carry water in bottles (reuse) of carbonated drinks . Each bottle is of 2 litres and consume  2 bottles the same in 6/8 hours . Are these bottles safe to store water and reuse, or can they prove deleterious to my health? Which is the best grade of bottle in which I can carry water for my daily use ? Is there a specific grade / quality of bottle which I need to use ?

Worran
worran@rediffmail.com