Food Grade vs. Pool Grade Diatomaceous Earth – Possible Confusion

July 2, 2010

Speaking with an industry associate recently, we were discussing the use of diatomaceus earth. A concern was expressed about using diatomaceous earth. I thought, maybe folks are confused by the many different types of diatomaceous earth.

For pest control, the only type of diatomaceous earth you should be using is “Food Grade” diatomaceous earth. “Pool Grade” diatomaceous earth has been chemically processed and is carcenogenic. Read the rest of this entry »


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