Donna wrote: >Please, can anyone explain to me what the DE >for pools has been treated with? ( Sorry for the >dangling participle)
I should hope so! No dangles allowed.
Diatomaceous earth is the ecto-skeletal remains
of diatoms. The individual diatom remains are
very small particles and I understand that they
have spots on their outer surface with sharp edges
that reduce their filtering abilities. Swimming pool
DE is heat treated - apparently the cooking process
burns off the surface irregularities which makes it
a better filter.
Chemically, I think it's the same stuff . . . just different
particle shape. The "rounding off of the sharp edges"
in the cooking process renders swimming pool DE
relatively ineffective in controlling snails and/or slugs.