Thanks SD for that clarification.
Tom -- I have all of them closed except for the engine raw water, dripless shaft, and one other one that is stubborn. I didn't antifreeze any of them because it's salt water in them and they are below the water line.
I don't like the smell of antifreeze, but perhaps I should go around and put antifreeze in them?
Fun fact #2484: In my avatar, that's DavidPM at the helm of my boat.
Bland, non-political statement goes here.