The 16 ft. model has the pump and filter located under the roadside dinette seat. Access is gained by lifting the seat cushion to reveal the access panel.
The 19 ft. model has the water pump located under the Stove. Access is gained removing the bottom drawer.
The 20 ft. model has the pump and filter located under the microwave. The bottom panel below the microwave is held on by pressure catches. Remove this panel to get access to the water pump and winterization kit.
The 22 ft. model has the water pump located under the roadside wardrobe. Access is gained by removing the felt covered lower wardrobe shelf. The winterization kit is located under the galley. Remove bottom panel to access.