Young Professional members of the Canadian Section will hear a talk 25 June by Dr. David H. Manz, inventor and developer of the BioSand Water Filtration (BSF) system, which is proven to reduce gastrointestinal disease by greater than 60 percent. There are more than 300,000 BSF’s in use in more than 100 countries. Where use of traditional slow sand filtration is limited to treating high quality water supplies for medium to large communities the BSF technology is affordable and appropriate for use in the homes of the poorest families in developing countries to treat almost any water supply they have available.  Read more…