Just purchased this unit from a private seller, whose husband had passed away, so no post purchase hand-off instructions. Can someone tell me what these fresh water lines are for. They are located directly on the opposite wall of the main bath, left of the service panel
That is a vacuum breaker on the black tank flush water line. If there were negative pressure at the campground spigot, this would prevent contaminants from the black tank from getting sucked back into the water supply.
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