To make the world’s largest pump believable it is all about paying attention to the smallest details. When the pump is fifteen times normal size it makes even the tiny details large! The pump handle will be fastened to the body of the pump by a giant pin with a similarly scaled cotter pin through the end. The handle pin is forty gauge eight inch pipe which has 3/8” thick walls. Matt welded up the rounded cap from layers of plasma cut steel. The bevel on the end of the pin was created in a similar fashion. Then a section of 3” pipe was cut through the big pipe and welded into place for the cotter pin to slide through. The oversized cotter pin was created by halving two and a half inch pipe with flat bar welded in the middle. Matt came up with the brilliant idea of welding a threaded rod to one half and a nut of similar giant size to the other in the middle of the cotter pin to join the two halves which will make installation a snap once the heavy pin is slid into place. The threaded joint is hidden inside the pipe.