Fresh water tank/Low point drain question
I found 2 low point drains on my fifth wheel. They are up near the front, and are behind an access panel. Makes sense. But there is also another set near the back of trailer, they come through the underbody cover just ahead of the fresh water tank. The fresh water tank is a big one and has two low point drains to drain it out, would these other two lines I'm seeing be vents perhaps to help in draining fresh tank? Or could they be overfill lines that let water out if tank is plumb full? I could not find low point drain valves anywhere inside or out for them, so I don't think that's what they are. By the way it's a 2014 33.5rets fifth wheel.