RICHARD1943, Using the exterior drain on the fresh water tank, hold (unfortunately by hand) your white hose and let it drain thru. You could also plug one end and allow it to fill, then drain. This is done, of course when you use the Freshener.
I purchased a 50' white hose and divided it into two 25' lengths with brass fittings. Only use one, but have another in those rare cases. When I shut down for the season, I sterilize both and lay them front to back on the roof of the RV for a couple days. Roll them up and store them.
2703 Tow Lite
Bonita Springs, Fl. &