[Raptorrider2001]

I am preparing to winterize my 25' twin bed. I am not sure where to find all of the low drain points. On the door side of the trailer, just behind the front wheel, there is a white drain spout with a handle on it. When I opened it, only a small amount of water would stream out. It looks like this hose goes under the trailer and into the water heater area. Just behind this valve are two drain valves like on a car radiator and are located side by side and protrude from what looks like and enclosed tank. The manual talks like there is one also located in the left rear compartment where the water pressure regulator is located but I can not see any thing else under the trailer that comes close to looking like a drain. Any ideas would be appreciated.