3055rl under slide hoses

[sailorand]

We have just got our 3055rl home. Under the living room silde there are 3 hoses protuding for the sheeting. What are they for??
I have just filled the water tank and run water through the system to sanitize it and one of the hoses has a little water running out.
Rand

 

[svd]

I am not sure, but we have 4 hoses that hang below and they are the fresh water holding tank vents. I think they also may serve as overflow as well. Congratulations on the coach!