In mine, if you go into the basement on the drivers side, there is an access panel. Remove it and you will find more drains, the water pump and some bypass valves. Good luck it’s a spaghetti mess in there.
2020 Eagle HT 30.5 CKTS, MORryde Pin Box, Zamp Solar, Xantrex Inverter (16” wheel upgrade, springs on lower shackle hole)
F-250 4X4 Supercab w/SB, 6.2L,Camper Package, Factory 5th Wheel Hitch, Demco 18K Autoslider