Our boat has a Jabsco water pressurization unit several feet from the item in the pictures attached. There are three lines as you see and I can trace two to water lines connecting in a T fitting. This gem is beneath the galley on the port side and appears to be connected still to 12 volts. No marking except what you see here. I cannot get myself wedged any further in to get closer.
RTF - I was watching this online a week ago! Those cartoons still hold up after all these years. Beats watching the news...
Comodave - I think you hit the nail on the head. Yes I have hydraulic steering and autopilot. The lines are copper like a water line. It's in the darnedest place though, and that was why I was first thinking something water related.
Bruce B - Have to say that did come to mind after I posted.
Lou Tribal - glad I didn't just get angry and start ripping things out... it would have been a real mess made worse by live 12 volts. Just like welding next to my fuel tank.
We have a Ray 6000 auto pilot that works great. I thought it looked like my pump, but my pump is in the lazarette by the steering system. I guess it can go almost anywhere in the system but under the galley is unusual. I still have to get the auto pilot interfaced with my e127. Just haven't had time to mess with it yet.
Also thought the location should have been closer to the stern. I wish it were elsewhere so I could check it out while the engine is running. At present my butt would get chewed up by the alternator and belt underway. Sometimes I wonder if a trawler ownership prerequisite shouldn't be no taller than 5'5" and no heavier than 140lbs.
I can turn the seacock just fine. Trying to hold an iPhone in the correct position and hit the little button to take the picture without dropping the phone is another story. They should have made one of the buttons on the side the shutter release. Was holding a little flashlight in the other hand trying to illuminate my target.