White Death

Hook: Standard shank wet fly. 
Body: Chenille, white. 
Wing: White marabou tied short with one strand of Pearl Flashabou on each side (optional). 
Weight: A few turns of fine lead wire under the body

This is a great fly for the bottom three dams, (Grootdam, Kwiting dam, and Mobumotsu dam) casting it out and letting it go down to the bottom of the dams floor bed, and retrieving it very slowly.