Soft Scrub with Bleach
$3.98/The Home Depot
Features: This liquid cleaner contains a bleach gel and a mild abrasive, so don’t use it on glossy fiberglass surfaces.
Instructions: Apply directly to the wetted nonskid surface, brush around to cover, let stand and rinse.
Performance Report: It removed every stain quickly and easily. It removed wine almost instantly, unless used after other cleaners tried and failed to do so. It showed almost instant removal without scrubbing. Blood and guts were easily brushed away after application.