On Tue, Aug 14, 2001 at 11:33:44PM -0500, Reagen B . Ward wrote: > > open, broke bag of D.E. (diatomateous earth, for the pool filter). > > I've used it as a pesticide; what's it used for in a pool? to filter the water. put it in a big tub and push water through it. my dad's got a DE filter on his pool. PITA. -brian