Started prepping my boat to paint and what not and noticed some spots in the floor with pink powder and other areas that look like bubbles. Several areas I pushed a screwdriver threw the bubbles areas are powder in the middle. I always flushed the hell out My boat after use in salt and nothing is grounded to the hull. I did have hydro turf down but removed it last spring and didn’t notice any then until yesterday cleaning old glue residue.just kinda puzzled what would of caused it to do so still. Any ideas?