I didn't flush the soil, i simply saturate it and let it sit for a day or two to get it ready for planting. I usually check the pH of the runoff. When i mix my ferts at 6.8 the runoff usually come out between 5.8-6.1 with a ppm around 1500 so i flush and flush and flush and flush and flush. Usually takes about 5 gal or better to get the pH to 6.3 or better. Usually a drop of aquarium water conditioner per gal. It's supposed to break the chemical bond but the shit never works so i flush and flush and flush. I use tap water to flush and the 008 for my ferts. I'm running a 5yr old 400w HPS in a 4 x 5.5 x 7 room with light at least 18" and a tower type oscillating fan. I stopped taking pict. It's incriminating evidence and shouldn't be on my cell phone, lol.