So Im heading to pick my son up from school and I see this guy pulling this contraption around a lawn spraying as he goes. His truck is out front and he is a pro not a homeowner. I have to see what he's doing so I pull over and talk with him and snap a pic. Its home made (obviously) 3.5 gal spot sprayer with 12v battery and shurflo pump attached to aluminum wand and tee-jet flat fan (blue tip) nozzle. So the question is, is he an innovator or just an idiot?........now before you jump on me for calling this guy an idiot...im joking a bit so lighten up in advance.