I just built the biggest pile I have ever made.4x4x8'. I had an abundance of weeds. It was weeds of a sand filter bed for our waste water treatment plant. very lush quickweed, nettles, puslane and some other weeds I don't want to spread to the tree nursery I plan to use this on. I check it today and there is some heat.there but not enough moisture I think. Will probably water it again when I turn it on day 4. So just used the lush green weeds as the nitrogen source. the brown was last falls oak leaves and wood chips from tree trimming late winter. I did not have manure to spark the heat. will it have the power to kill the weed seeds? planning to use the tractor to turn it and watering more.