Valves for the low point drains should be in the convienece center with the actual lines coming out the bottom of the rig. You have the low point drains and also the fresh water tank has a drain under the rig in the back near where you fresh water tank vent is.
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
2017 3500 Dodge Maxi DRW 4X4, Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, etc.