... system Manufacture 500L waste oil machine, biodiesel processor, 2hrs/patch Anybody can make biodiesel. It's easy, you can ... oil volume) to the small tank.Open valves 1 and 6 , so the catalyze pump into the major big tank ... .Close the Valve 6, keep the valves 1 and 4 on, to ... { 'aImgSrc': aBigImageSrc } ); } )(); 500L waste oil machine, biodiesel processor, 2hrs/patch