Pure Drinking Water

I think boiling is ok.  If you have a gas cooker, you can boil your drinking water cheaply.  It's only 8 glasses a day!

It also depends on where people get their water from.  Water from from a deep well or borehole won't need much treatment.  Anyway, here's a page on water purification: en.wikipedia.org/wiki/Water_purification

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Well atually, i agree with Seun, when i was in naija what we did was boil and filter, and the water did us just fine.

On the other hand, in secondary school other girls drank from the school's bore-hole (this is water that is so so impure, when you've let the water stand for a day, you see oil-like substance floating over it) but they drank it and they were fine

Not to talk of boiling the water and filtering afterwards, nothing in life is most secure so we just have to live with whatever we find availabe, I'm sure  the people in the village drink whatever water that comes their way, and they're all healthy Not everybody is rich enough to live on bottled water you know, all hands aren't equal Even most of these "pure" waters aren't safe

And for the records (Sorry londoners) London's water isn't anything to brag about either, their water is as contaminated too, but they're all drinking from their taps and living happily, I know this Cos when i and my cousin are travelling from Norway to London, we always travel with bottled water from Norway (who on the other hand has one of the cleanest waters in the whole world), even to brush our teeth, we use bottled water

Cos anything less is trouble for our system. So different strokes for different folks, some are sensitive, some aren't. Just work with anything that works for you!!