I bought a 2007 Starcraft last year at end of summer, used it once. When I winterized it we found that the water lines had come loose from the kitchen sink and that both the bathroom and outside shower leak where the lines meet the facet/shower. I am new to this so looking for suggestions on what the issue could be? I am worried that the previous owner did not winterize appropriately and the pipes broke? Not really sure what that looks like but concerned just the same.