| First rinse off any loose/gross material with a light pressure sink sprayer, then soak as Tootsall mentioned, in a warm water & Dawn dishwashing soap. After soaking for 30-60 minutes, spray again any material from the surface, then, under water, use a micro fiber cloth to wipe from the center hole outwards (radially) to remove any last material, then rinse thoroughly and dry by wiping radially with the micro cloth. |