"Pop" wrote in message
news:J6KdndZtyoit7qzeRVn-
Actually it's supposed to be good for the lawn since the tiny
shells hold water for the turf, plus DE kills off grubs and other
things like that. DE is specifically recommended for grub
control, in fact.

I believe that filter DE is different than the DE used for pest prevention.
If I remember correctly, filter DE is finer and more likely to cause
problems if inhaled.

Bob