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WARNING!
FYI! I lost a beautiful German Shepherd and the sweetest kitty because they ingested pool grade diatomaceous earth. Keep it away from your beloved pets!
Diatomaceous Earth
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WARNING!
Pool filter grade diatomaceous earth has been heat and chemically treated and will poison an animal or human who ingests it, so it is always of utmost importance to only obtain food grade diatomaceous earth to use in and around your household.
Quote from: Wolf Creek Ranch web site: http://wolfcreekranch1.tripod.com/defaq.html