[Pil-pc-oceania] tyre bits for water filtering

[Dr Bob Rich]

>http://jasper.cmsarchitects.com/pipermail/pil-pc-oceania/attachments/20061126/14b609e6/attachment-0001.html

Interesting article, but I understand that one of the problems with tyres is 
that various chemicals can leach out of them...
:)
Bob
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Dr Bob Rich bobrich at mooramoora.org.au
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