I got it from 360, not sure which other supermarkets has it too. It costs the same as the French brand - a very tiny one available in city super, but the size is bigger
In addition to Baby Center, I also read Gina Ford and Annabel Karmel, plus many other books related to raising happy and confident babies. it helps a lot for new mothers
I never count how much water she take every day. But when she is having solid food, I normally give her water after every 2-3 bites, to ensure she has enough fluid to digest the food. Hope that helps