Thread: Spider Mites
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Old 01-08-2009, 11:42 PM   #41 (permalink)
Richard
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Default Re: Spider Mites

The there is a health and safety regulation that diatomaceous earth labeled for swimming pool filtration be pH neutral. So regardless of the source, this D.E. should have no significant salt content. I say "should" because checking the pH of a teaspoon of it in a cup of distilled water is a prudent thing to do.

By the way, most people are familiar with salts making things alkaline, but there are plenty of salts that are acid forming.
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Last edited by Richard : 01-08-2009 at 11:44 PM. Reason: added by the way
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