Within the head compartment on the starboard side of the head is a 3/4" water intake for the head, originally with a gate valve. Adjacent to that valve is a 1-1/2" overboard discharge valve with waste line comimg from a manual pump on the other side of a bulkhead to the starboard sail locker. That pump is connected to an 1-1/2" hose that extends down in the sail locker to a 'T', the lower end connected as a discharge line from the holding tank on the port side of the engine /transmission area with the holding tank under the forward part of the quarter berth. The opposite side of the 'T' extends aft to the discharge fitting (black plastic screw cap fitting) in the starboard side of the cockpit coamiing. There is also a 5/8" vent hose from the holding tank thru the transmission area and up into the sail locker to a vent fitting under the aft starboard rail.
The 1/1/2" discharge line from the head goes to port thru the back of the engine compartment over the transmisssion and into the holding tank. There is no 'Y' valve, so in order to be 'legal' you need to close the overboard discharge valve and remove the handle, so theoretically you can only pump out from the on-deck discharge fitting.
If you go on-line to
www.huntertwentyeightfive.com , I believe there is a manual for the boat that has the plumbing diagram in it. The other larger black reinforced rubber hoses in the sail locker are part of the waterlift muffler exhaust system,but that's another story.
