Hello everyone. I recently got an old pressure washer running for my parents. I was curious as to how well a pressure washer could clean our farm truck. Normally I use a foam gun with a clean bucket of water with grit guard to rinse the wash mitt. Is using a pressure washer a good idea or will is cause problems? It has 2450 psi at 2.5 gpm. How far should the wand be from the surface? What about using the supply hose to spray soap? What about the foam cannon? I already have a foam gun. I am trying to learn. Thanks for the help.