Droppings from birds and spiders ruin the looks of any boat and can't be removed with just soap and water. But just spray on Star Brite Spider and Bird Stain
Bird and Spider Droppings Stain Remover - Vessel Management Services
Mold & Mildew Cleaner & Blocker - 32oz 303 Mold & Mildew Cleaner + Blocker quickly and safely cleans and removes tough mold and mildew stains from virtually any water-safe surface. Not only does this product CLEAN unsightly mold and mildew stains that have already formed, it will also help PREVENT mold and mildew stains from re-occurring on the treated surface.
303 Mold & Mildew Cleaner & Blocker - 32oz
STAR BRITE Spider & Bird Stain Remover Spray - Quickly
Starbrite, Vlekkenverwijderaar (Voor uitscheidingen van vogels en
Fun Facts about Bird Droppings – Glass Tech Boat
YachtGUARD Marine Spider and Bird Dropping Remover
Bay Area Wonders Anthology: In Praise of Kelp, Banana Slugs, and
How to clean off bird sh** stains!! - The Hull Truth - Boating and
CAPTAIN JOHN'S BOAT BRITE Algae and Waterline Stain Remover, 32oz