2014 Tioga Ranger 25G

Find your hot and cold water low drain valves. They need to be open to drain all old water out of system and fully closed for system to pressurize after refilling. Ours are behind a panel in the outside wall of the rest room, hard to reach and hard to open and close. Install an awning lock device to prevent awning from unfurling while underway and damaging fabric and support arms. Not supposed to happen but it can.

http://awninglock.com/index.shtml