In one of my overzealous sterilization procedures, I accidentally shattered my thermometer spilling the dye into my waterchange bucket. This dye has now stained the plastic red and even with 30 minutes of vigorous scrubbing and even bleach treating the stain, it won't come out. Does anybody see any harm in using this bucket for aquarium purposes still or do I have to go out and buy a new bucket when I pick up a new thermometer.