Help Carver owners: See pics. I recently bought this 1991 Carver 26' command bridge. Manual head.(1st pic) The bigger 1.5" raw sea water valve I assume is for the head. The smaller valve(pic 2)I'm not sure what this is for.(handle missing) maybe for a sea water washdown in aft of boat? or an override to fill the fresh water holding tank? pic-1 shows bigger valve on starboard side. Pic-2 smaller valve on port side. Thanks for any advice gents.