I ended up just using H251 spring hinges from an R.V. center. Couldn't find stainless.
The fresh water fill is on the port side right near where the sink is but I still don't see he tank or pump?

Hello everyone,
As you all know I have slowly been bringing this boat back to life again. I'm hoping the question I can get some help with is:
I'm trying to find the fresh water pump for for the cabin sinks and shower head. The boat has a sink on the port side and a sink and shower head on the starboard side in the bathroom area. The fresh water fill is on the port side about even where the sink is. I have been looking and can't seem to find where they hid the pump. The hoses from the starboard sink and shower head go thru a switching valve and then look to go back to the port side. I know I'm getting older but I'm loosing my mind on this (LOL). Is there a hiding place that I'm not seeing?
Just a recap-1989 Sonic 27 SS

I would be sure to inspect every spot in the portside gunwale. It could even been in the water tank. It's going to be close to the tank because it needs to push directly from the source; they are not designed to pull water.

Just in case anyone is interested, found the fresh water tank, It's a stainless tank dead below the water fill on the port side in the gunnel. No idea how they got it in there or how it comes out. The pump I believe is missing. I found some hoses wrapped up in the port side gunnel in the sliding compartment., wiring is also there, Going to check further on the wiring and see if that's actually from the pump switch in the cabin area. If it is, I'll install a new pump, hoses and faucets. May as well have it working if it is suppose to be there. Time is on my side with that project as it can be done when the boat is in the marina over a few beers.