Ive got yellow stains on the hull, how can I get rid of them? Is a shampoo such as Boat Wash sufficient?
No, a shampoo is too mild and will not have any in-depth effect. You need to use “Star brite Hull Cleaner” Ref. 81732 which will remove these yellow stains and other brown tannic stains. Spray the product onto the hull, spread it using a sponge, leave it to act for 1 or 2 minutes then rinse thoroughly with water. Repeat the procedure if the result is not totally satisfactory.