yes. you need to remove that panel under the closet. you will need your owners manual to see which valves need to be turned and the direction to turn them.
2011 Jayco Eagle Super Lite 314BDS
2013 Chevy Silverado 2500HD CC 4X4, 6.0 Vortec, 4.10 axle
Reese Dual Cam Sway
Wife, 2 kids and dog