Go to your ag store ,get a 50 pound bag of copper sulfate, build you a tank big and long enough to stack lumber in ,mix chemical with water and soak lumber, green lumber preferred it soaks it up easier than dry , leave for a week or so until the lumber is blue / green color ,there you have it.
I run a sawmill that makes pressure treated fence posts. Moisture content has to be at or below 15% to treat with our copper based chemicals. That is done at 150 psi and 120 degrees. The reject posts I sell, are $2 each. Most guys burn them black with a weed torch, burn the part in the ground and about 8 inches above ground. Most posts rot off a couple inches above ground. My deer blinds are made from rough cut pine, I burn them black, brush off with a broom them spray with deck sealer. some are pretty old with not rot showing yet.
