 These additional steps reduce the risk of spreading aquatic invasive species, decontaminate watercraft and equipment, find free stations on the courtesy decontamination page of the DNR website, spray watercraft and equipment with high-pressure water or rinse with very hot water, 120 degrees for at least 2 minutes or 140 degrees for at least 10 seconds, and dry watercraft and equipment for at least 5 days before using in another water body.