I can confirm the the engine intake and galley sink drain is isolated from the core. I assume the head sink is as well but have not verified.
John
Originally posted by Rhapsody #348:
known stuff I've found to be not isolated from core (above & below waterline):
Engine Exhaust
Around Chain Plates
hinges on cockpit and anchor lockers
all hardware on cabin top
stanchion base mounting holes
Confirmed isolated:
Speed & Depth Xdcr
Head Seawater Flushing