Learn how waste and water systems work on sail or power yachts and how simple it is to service major components. Part one diagrams a basic water system with pumps, heater, and pressure tanks. Part two diagrams a waste water system with macerator pump and holding tank. Part three looks at a range of simple maintenance and repairs that anyone can do with a screwdriver and a wrench. Part four looks at installations on various power and sail boats. 75 min.