![Amazon.com: Marine 31 Mildew Stain Remover & Cleaner - Marine & Boat, Home & Patio, Bathroom & Shower Cleaner (20oz) : Sports & Outdoors Amazon.com: Marine 31 Mildew Stain Remover & Cleaner - Marine & Boat, Home & Patio, Bathroom & Shower Cleaner (20oz) : Sports & Outdoors](https://m.media-amazon.com/images/I/511-p1tceXL._AC_UF350,350_QL80_.jpg)
Amazon.com: Marine 31 Mildew Stain Remover & Cleaner - Marine & Boat, Home & Patio, Bathroom & Shower Cleaner (20oz) : Sports & Outdoors
![Amazon.com: Marine 31 Mildew Stain Remover & Cleaner - Marine & Boat, Home & Patio, Bathroom & Shower Cleaner (16oz) : Sports & Outdoors Amazon.com: Marine 31 Mildew Stain Remover & Cleaner - Marine & Boat, Home & Patio, Bathroom & Shower Cleaner (16oz) : Sports & Outdoors](https://m.media-amazon.com/images/I/517FcTijRLL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Marine 31 Mildew Stain Remover & Cleaner - Marine & Boat, Home & Patio, Bathroom & Shower Cleaner (16oz) : Sports & Outdoors
![Uncovered the boat and every seat has these stains/mold. Doesn't come off to the touch. Any idea of the cause or treatment/cleaning solutions? Sits on fresh water lake. : r/boating Uncovered the boat and every seat has these stains/mold. Doesn't come off to the touch. Any idea of the cause or treatment/cleaning solutions? Sits on fresh water lake. : r/boating](https://i.redd.it/uncovered-the-boat-and-every-seat-has-these-stains-mold-v0-ipeviioi6tja1.jpg?width=3024&format=pjpg&auto=webp&s=048f582cad6b6765bd275b909362cebc291c6d1d)
Uncovered the boat and every seat has these stains/mold. Doesn't come off to the touch. Any idea of the cause or treatment/cleaning solutions? Sits on fresh water lake. : r/boating
![Uncovered the boat and every seat has these stains/mold. Doesn't come off to the touch. Any idea of the cause or treatment/cleaning solutions? Sits on fresh water lake. : r/boating Uncovered the boat and every seat has these stains/mold. Doesn't come off to the touch. Any idea of the cause or treatment/cleaning solutions? Sits on fresh water lake. : r/boating](https://preview.redd.it/uncovered-the-boat-and-every-seat-has-these-stains-mold-v0-o01nsioi6tja1.jpg?width=640&crop=smart&auto=webp&s=ab263d0af07e5342ea4cc1bd964d620a68b9f2d6)