How do I clean up a pond colorant spill? Do not add water to the spill, you will just spread the dye! If you have a liquid pond dye spill, soak up as much of the product with an oil absorbent. Place the soiled absorbent in a trash bag to prevent colorant bleeding on anything else. Use a 50/50 bleach and water mixture to clean up the rest. To clean off of hands use bleach water, but be sure to keep out of eyes.