OK........
Here is the 1994 Brave Owners Manual
https://www.winnebago.com/Files/File...94/94Brave.pdf
Section 7 is the Plumbing System
Section 7-5 & 7-6 (roughly pages 55/56) is the DRAIN VALVE Location by Brave Model
*All drain valves should be CLOSED when using plumbing system
Section 8 is the Appliances Section 8-6 & 8-7 (roughly pgs 2/63) are for the water heater
Winnebago likes to install Check Valves in Water Heater Tank Cold Inlet AND Hot Outlet.
If water heater tank is full and Heated but no flow...check valve in HOT out (nipple screwed into tank hot port) is bad
If water heater tank does not fill...check valve in COLD in is bad (if one was used)
Water Heater Tank BYPASS valve needs to be in NORMAL position
**If you have a bypass....see section 7-5 (pg55) for location on your Brave Model