dump valves

[GCollins]

hey, y'all
First I want to say I have been camping for a quit a few years, so not new to having a 5th wheel. My wife and I just purchased a 2013 Crossroads Cruiser 5th wheel, so we are new to this one.
looking at the dump valves, there are 2 Blue valves that open, but I have no idea WHAT they open.

is someone could shed some light on this, I would greatly appreciate it.

thanks

[007matman]

Found this in another forum.

https://www.rv.net/forum/index.cfm/f...print/true.cfm

They're for the low-point drains.

[GCollins]

Thanks so much

[mark5w]

Low point drains, turn to release the water.