that has been stored in drums prone to ingress of water, or from any other doubtful source. The technique is to provide a large-mouthed funnel with a wide outlet surface that supports a woven wire base, or metal plate with a grid of holes. The lower part of the funnel is tapered to fit the receptacle or tank-filler aperture. A suitably sized chamois skin is soaked in clean fuel and placed over the grid in the funnel and brought up the sides, forming a bowl, to prevent any leakage past the skin. Fuel can then be pumped into the top of the funnel by the fuel dispenser and watched for signs of water accumulation. The process can be stopped to lift out the assembly from the tank and the trapped water removed so that the job can be continued. Chamois leather is used thus as a fuel filter by boaters, auto detailers, and aircraft refuellers, particularly of a past age when aircraft were flown into very remote areas. Uses Chamois leather is widely used for drying and buffing vehicles, such as cars and vans, after washing. Small pieces of chamois leather (often called "chamois cloth") are commonly used as blending tools by artists drawing with charcoal. The leather blends the charcoal more softly and cleanly than the artist's fingers, which can leave smudges. The chamois is also used to lighten the drawing (or portions of it) by removing some charcoal in a more subtle and nuanced way than most erasers could. The charcoal can be washed from the leather using soap and water. Chamois leather is used around professional film and video camera viewfinders, as it provides comfort and absorbs sweat from camera operators who spend a long time with their eye planted on the viewfinder. Divers use towels made of chamois leather to dry themselves between jumps, as they can be quickly dried by squeezing them. References Leathermaking Leather