I am interested in using DE in a dust box but I don't know where to get the food-grade type. The only kinds I have seen are for either pools or gardens and they are no good. Any suggestions?
I ordered mine from:www.hoeggergoatsupply.com. Although the website is acting a little wierd right now (??). It's $6.95 for 5 lbs, plus shipping, of course.
Make sure the DE you use meets World Health Organization (WHO) safety standards. WHO cautions that DE with a crystalline silica content over three percent (3%) is dangerous for ingestion by humans or animals. Safe Solutions, Inc. DE has less than 1% free silica. Swimming pool DE ranges from 60% to 70% free silica.