Objectives for BMP Use Prevent paints, especially those with copper, from entering the water and sediments. Hull Cleaner BMPs 5 Wait 90 days after applying new paint.
Paints release more toxicant when new.
On these boats, clean only running gear and zinc anodes. Use soft nylon or similar material on rotary brush machines. Use more rigorous cleaning pads only as needed to remove hard marine growth. Do not sand or strip hull paint underwater. Clean gently to avoid creating a plume or cloud of paint in the water.