Use BilgeRemed for ship-board pretreatment of oily bilge water before releasing it. BilgeRemed can be used effectively to reduce the load on an onboard oil-water separator (OWS). BilgeRemed can also be used in smaller boats to clean up their bilge tanks. BilgeRemed is effective on a mixture of oils and greases. A gallon (3.785 liters) of BilgeRemed treats 100 gallons of oily bilge water containing 10% oils and greases.