[EllaC]

You can buy filters or even a drink bottle with a special kind of rock? Id have to look it up but it PUTS essential minerals into your water along side taking chemicals out and they last a few months . But a Britta would give you more value for money, not sure if its purely a filter though. If you go bottled BB be mindful of bpa in the plastic.
We can get boxes of water over here for $6 which is full of minerals oxygen etc and it lasts me say 3 weeks if i drunk a few glasses a day out of it.