I have found a leak behind hose bib in service bay. I have some pictures of the gray water line going aft <br/>above the batteries to the water service port area and behind the hose bib. my question is how can I get at<br/>it? The leak appears to be right where the gray plastic but joins the brass elbow. (Orange Arrow). <br/> <br/>The fill port and the hose bid are in a fiberglass box...