It's the aft-most hatch in the quarter berth. I looked in yesterday and saw where the blower fan used to be along with the old ratty hoses, but no fan. Guessing it was a casualty of the flood. However, I did find this:
View attachment 37761
So, I guess that explains the "standard" faucets that were installed at the two sinks. Now to trace it back and figure out how it hooks into the fresh water tank.
So, I know the blower is less necessary for diesel engines from a combustion perspective, but isn't an exhaust fan still a good idea to not only get air to the engine but to help pull any stray exhaust fumes from the compartment?