Rockwood Roo bathroom sinks drains to the ground

[JackJoanne]

Why when we run the bathroom sink, the water drains out a red tube to the ground that is just above the black waste water line? We have a 2007 Rockwood Roo.

[bikendan]

It's probably the hot low point drain left open.

[JackJoanne]

Thanks for your reply. Would it still be that if we are not running hot water?

[bikendan]

The low point drains are for winterization.
Nearly all RVs have them.

There should be three drain tubes sticking out underneath:
FW drain tube
Hot water low point drain(usually red)
Cold water low point drain(usually blue)