In Response To: it was laughable (Bruce Woods, Slipper 17 "Nimby," Raleigh)
they must have just used what was handy and put a lot of faith in the 'ol 5200! Anyway, our 23's are all above water line, except of course the intake for marine head. Appears Seaward did nice job with seacocks and they are good quality; didn't touch ours for several years and when I did it worked like new.