I have a 2007 Fleetwood niagra and have not yet used the water hook ups but noticed on the underbelly of the trailer a hose that was approx 3 in diameter , teal/blue color and flexible and came from the curbside near the frig. It had many holes in it and came apart while driving. Looked like some type of a water hose but unsure. Obviously needs to be replaced but unsure of what it was for and where to get replacement part. Thank you!