ORPINE ORBILGE HEAVY DUTY BILGE CLEANER - Pour small quantity of ORBILGE directly into the bilge with water and allow it to agitate with the movement of the boat. Can be diluted 1 to 2 oz. in 3 to 5 gallons of water. Should only be used for heavy duty cleaning operations. Not recommended for bright work. Product is sold by the quart or gallon.