My 1985 Hunter 31 has a shower sump that starts in the sole inside of the head and extends to the sole just in front of the head door. It has a grate over it, as shown in the attached top-down photo. As you would expect, the sump is designed to drain into the main bilge area. Just under the grate in the photo is a black plastic, threaded "tube" or pipe that is coming up from the sump floor (one side of it can barely be seen in the photo in the middle horizontal grate support). The vertical pipe has a "nut" of sorts screwed down its threads. Anyone have any idea what this plastic pipe is and why it is there? Does it allow access to the area between the liner and the hull? Thanks.
Attachments
-
477.4 KB Views: 254