Remove fuel, grease, or oil from wand. Remove salt water residue or dirt. Wipe dry.Contaminants on the wand may be conductive and allow an electrical discharge to travel the outside surface of the wand and reach the operator. Store the wand in a dry place out of direct sunlight. Turn the wand upside down and coil the cable, lariat-style, into several loops (12-inch diameter). With the last remaining loop, interlace the cable around the loops several times and attach the clamp to the end plug. Hang the wand upright by the wand hook. Do not attach clamp jaws to the grounding cable because you may puncture the cable insulation.