Tips for Minimizing Grey Water Discharge

Although it may seem harmless, grey water —the soapy water resulting from boat maintenance activities— can pose a threat to the marine environment. Containing toxins like phosphates, chlorine, inorganic salts and metals, this soapy water can pollute ecosystems and fish supplies. Because boats are not connected to a sanitary sewer system, grey water flows untreated from onboard sinks and showers into our local waterways and oceans.

Prevent Grey Water Pollution:

• Use shore-side facilities—For shorter day trips, bring your dirty dishes home to wash and, whenever possible, take showers on shore.
• Use phosphate-free and non-toxic soaps—Check product labels and avoid cleaners that advise “do not get in eyes” or “always wear gloves.” These products are more likely to harm you and the environment.
• Use alternative cleaners—Baking soda, lemon juice, and vinegar can all perform as well as commercial cleaning products without the harmful byproducts. See the complete list of household alternatives to commercial boating products.
• Use less product—A little cleaner can go a long way, especially when combined with a bit of elbow grease. Wash decks and hulls frequently with fresh water to avoid the use of harsh, corrosive cleaners.