Hey people, Got another dumb question I need help with if you would. We bought a 1991 Pace Arrow in the spring and am having trouble draining the fresh water. I opened the valve that was marked fresh water, but that didn't do it. There are 2 other valves next to fresh water. One is marked water heater bypass and the other simply says hot water. I did mistakenly drain the fresh water once when we had to camp at a walmart. Should I open the bypass valve? I can see 2 drains below the fresh water tank. Any help would be greatly appreciated.