The plumbing is moving right along. I tee'd off of the head intake pump and ran a line forward into the anchor locker for a deck wash-down and ran a line to the head sink for a seawater tap. There is no discharge anywhere near the intake thru-hull to contaminate the water. The toilet discharges into the holding tank and then the holding tank will have a discharge thu-hull and deck suction fitting aft near the cockpit.
The fresh water tank is located under the V-berth and I needed to vent it but did not want the vent outside the vessel and possibly contaminated with salt water etc. I ran the vent to the head sink and plumbed it into a brass spigot at the sink, that way its inside the boat and if the tank is overfilled the overflow goes harmlessly down the sink. We installed a whale foot pump for the head sink. We could not reach the lower fastener on the foot pump to install it so we cut a thin piece of aluminum and mounted it to that and then fastened the aluminum into place.
We plumbed it to a chrome plated spigot at the head sink.