My husband is dead set that we need DE so now it's up to me to locate a place to purchase it. I have contacted Bomgaars in Council Bluffs, Ia and Tractor Supply in Omaha, Ne and neither place has it or even knows what I'm talking about. I'm at a loss...other than ordering it off the internet. If anyone has any ideas as to where I can get it, locally if possible, it would be a great help. If I have to order it, where is the most economical place to order it?