Clear for ten to twenty minutes. Raise roll and drain the beater. If more pulp is desired, refill with water and fiber and repeat the beating cycle. Hose out beater, a pistol grip nozzle works best. Clean very thoroughly, hose or wipe off any part that has pulp on it.
Pulp is easy to remove when wet, difficult to remove when dry.
To prevent this, wax the tub with auto wax before using pulp that will stain. To remove stains, use white auto polish. Do not use white polish except for stains as it is abrasive, for general cleaning treat the tub as you would a fiberglass bathroom shower. Should you accidentally damage the tub, repair it with a fiberglass boat repair kit. Take off cover.