Water leaking from imagine 2800

[tanman77]

Hello all. We purchased a 2018 imagine 2800 and took it camping for the first time this weekend. When we hooked up the water line to the trailer and turned the water on water shortly thereafter starting coming out the underbelly of the trailer. It was coming out at a crease in the underbelly cover approx 10’ off the back end. The owner i purchased from said the water system had been completely drained prior to him putting it in storage. I can’t find anything showing how to access the water lines. Thanks in advance for any help!