elvin said...
food grade is what i'm using and i'm ingesting it. i'm not sure i would bother with it for carpenter ants.
some people use 1/2 cup a day but i've been pretty happy with 1 teaspoon per day. i also have bentonite clay which some say is full of lead and other metals as well. i'm thinking about doing it every other day and alternating with the bentonite clay.
also the fact that it supposedly detoxes metal confuses me.
Lol - It got rid of our carpenter ants - better than toxic spray IMO