Ask about your marina's policy on hazardous waste disposal. Some automotive shops accept used oil, oil filters and batteries for recycling. Oil filters must be drained into a pan for 24 hours before they can be recycled. Ask your marina manager to refer you to shops that collect these materials, or to the local hazardous waste collection facility. Never contaminate used oil with another toxic substance such as engine cleaner, gasoline, diesel or transmission fluid.
Contaminated oil is more expensive to dispose.
3 Oil absorbent pads should be disposed as hazardous waste. Store sewage in holding tanks. Dispose regularly at pumpout stations, or hire a mobile pumpout service. Ensure MSD Type II systems work properly and discharge only when underway and a sufficient distance offshore. Ask the Coast Guard for rules on offshore discharge.