Stop Fluoridation Campaign Invercargill

Invercargill uses sodiumsilico fluoride as its fluoridation chemical. In a tender document to Wellington Regional Council, fluoride chemical supplier D.C. Rosser says that "Invercargill Council before switching to Prayon SSF last year, experienced numerous problems with an alternative Chinese SSF supply that included caking, yellow discolouration, metal springs, plastic and cardboard in supplied product that frequently blocked their feed
mechanisms."  See DC Rosser Tender0001.pdf