It would help if you were minding not only some fees but also the upkeep of its fiberglass deck (and hull). Maintaining it can reduce maintenance and repair costs, so learning how to clean fiberglass boat deck is advantageous. You can clean a boat with bleach, bit it does contain very harash chemicals and over time can damage gel on fiberglass boats, degrade vinyl seating threads, vinyl boat wraps, discolor and fade paint, and lead to corrosion in boat fitting and fixtures.
In my experience, I find it easier and faster to deal with the stains with a non-stick and gentle deck cleaner befor