I just found DE online for $9.00 for a 5lb. Bag. Has anyone ever ordered from gardenharvestsupply.com? I have a SEVERE fly problem!!! I have my 40'x50' chicken yard FULL of poop and then I have a HUGE compost pile full of rotten food and poop and there are flies EVERYWHERE. I need DE and I need it FAST. Any help would be great.