I am sure you have heard many pure water horror stories. 
I am going to tell you another one which was told to a close relation by a first-hand witness. The story goes like this:
A “couple” of which the wife was some sort of medical personnel (possibly a nurse) went into the “business” of selling pure water. The wife being in the medical field but not employed at the time, was good enough to ensure the “quality” of their product by boiling the water, passing it through a table filter and then bagging it by hand from the tap on the filter. Fortunately for the couple (and unfortunately for a lot of unsuspecting people out there), the wife got employed in her field again. As the husband had no other job, he decided to continue the pure water business.
Well, as business was really booming and he couldn’t keep up with the demand, he soon decided that it was the water filter was too slow, so that was removed from the production process, thereby increasing his output. Well, he still couldn’t keep up with the demand (booming business), so he decided that boiling the water and waiting for it to cool, was an unnecessary bottleneck, so that too went out of the production pipeline. Now we are left with unboiled, unfiltered water being bagged by hand.
As business was still really booming and he couldn’t keep up with the demand, he decided that bagging the water from a tank’s small tap by hand was too slow (and too painful on the back as he and his assistants had to bend low to fill the bags from the tank), so he ran the water into a big plastic vat. Sitting comfortably beside the vat with a small scoop, he continued filling the 50ml plastic bags by hand, and sealing the bags with a hand-sealer.
Did I tell you he was using water straight from the mains? Sorry, it almost skipped my mind!
The moral of the story? Let’s turn a popular Yoruba proverb on its head (if you are going to eat a toad, eat one with eggs). If you are going to drink pure water, go for bottled water from a well known source with a reputation to protect (no, I am not trying to kill our pure water cottage industry), otherwise you might as well take water straight from the mains (government water) in your house, say a quick prayer and while downing it, think to yourself that “Aye daa bo wa” (life is getting better) if you as a Nigerian can now drink water from the mains same as people in the developed countries. Couple that with the recent increased stability of the power supply (Uncle G.L.J., you can do more!), why, you could start thinking of asking your long lost-in-America relations to head back home 🙂

Enjoy!