Most of this week i've been drinking bottled water because it was on offer and i wanted the bottles for work. I drank the last of it last night and started on tap water this morning and i can actually tell the difference, think its the taste could be the texture (i know that sounds bizzare but somethings different) We have hard water down in this area which i think is it, will a water filter make a difference? like brita? or should i just stick to bottled water. You are talking to a girl who, up until this week, drank nothing but fizzy drinks water is not in my field of expertise!