Quote: " so perhaps someone "fixed" it ...'
Indeed. Older boats have often had a succession of owners each of whom have made "improvements", all of which have made the boat progressively dysfunctional. That's just the way it is given that yotting is so much of an amatoor's game
TP came to us with the icebox drain tapped into the drain for the galley
sink. That in turn was tapped into the drain hose from the forward cockpit
scuppers. This hose was led to a thru-hull below the waterline which was, amazingly, fitted with a seacock. The after cockpit
scuppers were taken to a thru-hull ABOVE waterline on the transom and had no seacock.
In the chain locker I found three lead ingots of about 50 lbs apiece which of course brought her down by the head
so that rainwater in the cockpit would drain through the forward scuppers first and back up, when the seacock was closed, into both icebox and galley
sink until the common level was that of the after scuppers.
The PO was a successful businessman, so his IQ must have been at least marginally higher than the water temperature in the Salish Sea. Although there is the possibility that his dad had given him money
enuff to hire, for his business, people who DID know what they were doing.