Make your own water filter

[the-gnole]

mixing the clay with coffee grounds, the coffee grounds burn off in the firing process, leaving tiny holes throughout the clay. The holes are big enough for water to seep through but small enough to trap 99.8 percent of the bacteria, rendering safe drinking water.

Read more: How to Make a Coffee-Clay Water Filter | eHow.com http://www.ehow.com/how_2265401_make-co ... z1HMoc3z3Z

[Carrot Cruncher]

Thats quite an interesting idea, do you know anyone who has tried it ?

I just googled it for some more info about the purity claims and there is quite a good piece here http://www.abc.net.au/catalyst/stories/s1381331.htm
Definitely worth knowing how to make

[counsellor]

I have this home made design for a filter and just wonder if anyone can confirm whether it would work or not ?

It works as follows. by feeding the water through either two tanks linked together or through a pipe filled with the following

Tank one filled with course grit,
best if it is filled with the supply water from the bottom up to an overflow pipe near the top this then feeds into bottom of a second tank with charcoal lumps, silver items and fine grit / sand

A slow steady feed of water will remove many impurities

I think that it works as follows
the large grit remove large particles, items and visible bugs.
The fine sand grit removes even move then the charcoal is positively charged and has millions of tiny cavities which attracts further impurities finally the silver has antiseptic properties

Depending on how much it filtering it will need the contents to be changed

[the-gnole]

Sounds like a "Di-hydromonoxide" filter to me, you might try a search on that as there are loads on the net to guide you on their safe use.