Has anyone had to refurb the water lines to the sink from the tank and from the drain to the through hull? Looking to confirm some things:


- on the drain to the through hull. Looks pretty straightforward - just going to replace the through hull with a Marelon through hull and attach a seacock directly. Thinking about putting a laminate sheet in to strengthen around the hole in the hull and provide a more flat surface to connect the through hull. Make sense?
- Where I am having an issue is with the routing from the tank to the tap. I cant figure out how to get water to the sink from the tank. The water tank that was in the boat when I bought it is a Riblet J-2 5 gal tank. It is in very good shape no leaks, clean inside - see second picture. It has two openings on the top of the tank - one is 1.5" and one is 1/2". The tank has solid caps for both which allows the tank to be closed off, but dont know the setup for using it when pumping water to the sink.
- The question is whether the small or large opening is used to draw water from the tank and send it to the sink tap.
- Option 1 use the small opening - There is one fitting that does thread on the outside of the small opening (see first picture). There is also a piece of 3/8" tubing that I assume is the actual pickup line but it isnt connected to anything. It does fit through the small opening though. Is this the normal way this was set up? That I would reverse the barb in the fitting and connect it to the pickup tube?
- Option 2 use the large opening - My original assumption was that I need another cap to the 1.5" opening that allows me to connect a pickup tube inside the tank to the water line to the sink tap, but havent a clue where to locate one or whether it is something I need to "engineer".
- The question is whether the small or large opening is used to draw water from the tank and send it to the sink tap.

