My daughter and SIL just bought a used '96 Jayco 1006 popup for their first camper. He called me asking some questions. We have a Class C so I couldn't help him much. His main question was about us...
Yes there should be a water storage tank , water heater, water pump No grey holding tank , we used a small water hose connected to the drain port, drained that into a blue 7 gallon water container